Honda advanced technology

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Honda Advanced Technology is part of Honda's long-standing research and development program focused on building new models for their automotive products and automotive-related technologies, with many of the advances pertaining to engine technology. Honda's research has led to practical solutions ranging from fuel-efficient vehicles and engines, [1] to more sophisticated applications such as the humanoid robot, ASIMO, and the Honda HA-420 Honda-jet, a six-passenger business jet. [2]

Contents

Engine and environmental technology

i-VTEC

2.4 DOHC i-VTEC. Honda K24A Engine 02.JPG
2.4 DOHC i-VTEC.

i-VTEC is the acronym for intelligent VTEC (Variable Valve Timing and Lift Electronic Control), an evolution of Honda's VTEC engine. The i-VTEC engine works by controlling the timing and lifting of the camshafts depending on engine speeds. The valves open a small amount during low engine speeds to achieve optimal fuel efficiency. The valves will open wider at higher engine speeds to achieve higher performance. [3]

Honda i-VTEC (intelligent-VTEC) [4] has VTC continuously variable timing of camshaft phasing on the intake camshaft of DOHC VTEC engines. The technology first appeared on Honda's K-series four-cylinder engine family in 2001 (In the United States, the technology debuted on the 2002 Honda CR-V).

What is this referring to: The new mechanism debuted in 2003 with the V6 3.0-liter i-VTEC engine which used a new Variable Cylinder Management (VCM) technology that runs on six cylinders during acceleration but used only three cylinders during cruising and low engine loads. [5] In 2006, Honda introduced the 1.8-liter i-VTEC engine for the Civic which could deliver accelerated performance equivalent to a 2.0-liter engine with fuel efficiency that is 6% better than the 1.7-liter Civic engine. The high power output with low emissions and fuel economy is largely contributed by the improvements in several areas:

The i-VTEC technology is also integrated into Honda's hybrid vehicles to work in tandem with an electric motor. In Honda's 2006 Civic Hybrid, the 1.3-liter i-VTEC engine uses a 3-stage valve design, an advancement from the 2005 i-VTEC technology. Aside from weight and friction reduction, the engine operates on either low-speed timing, high-output timing or 4-cylinder idling when the VCM system is engaged, each yielding better engine output upon varying driving conditions. [7] Its competency helped place the Honda Civic Hybrid as the third "Greenest Vehicle" in 2009. [8] It can be found on most of Honda's new vehicles in showrooms and roads.[ citation needed ]

Earth Dreams Technology

Earth Dreams Technology are modifications to increase fuel-efficiency in the range of 10% by selected use of DOHC, variable timing control (VTC), bore pitch, direct injection, reduced cylinder block and camshaft thickness, reduced engine weight, Atkinson cycle, friction reduction, high-capacity exhaust gas re-circulation (EGR) and electric water pumps. [9]

Integrated Motor Assist

3 stage i-VTEC + IMA. Honda Hybrid System 02.JPG
3 stage i-VTEC + IMA.

The Integrated Motor Assist, or IMA as it is commonly known, is Honda's hybrid car technology that uses a gasoline-electric drive system developed to achieve higher fuel economy and low exhaust emissions without compromising engine efficiency. The IMA system uses the engine as the main power source and an electric motor as an assisting power during acceleration. It was first designed for the Honda Insight in 1999, which combined the electric motor with a smaller displacement VTEC engine and a lightweight aluminium body with improved aerodynamics. Low emissions target was realized when the car achieved the EU2000. [10] In 2001, the Honda Insight Integrated Motor Assist system was declared "Best New Technology" by the Automobile Journalists Association of Canada (AJAC). [11]

The development of the IMA system is a result of optimizing the various technologies that Honda has built over the years, including the lean-burn combustion, low-emission engines, variable valve timing, high-efficiency electric motors, regenerative braking, nickel-metal hydride (Ni-MH) battery technology and the microprocessor control. [12] The target of this integrated system was to meet improvements in several areas:

With the IMA system, the amount of energy regeneration during deceleration is optimized and friction is reduced. The recovered energy is used to supplement the engine's output during acceleration.

The IMA supports the engine during a low rpm normal driving range by utilizing the electric motor to generate a high-torque performance. When the gasoline engine enters a higher rpm range, the electric motor ceases and power output is supplied by the VTEC engine. The assistance from the electric motor reduces the work of the gasoline engine, allowing the engine to be downscaled. This results in better mileage and reduces fuel consumption.

The power from the electric motor is generated and conserved when the vehicle moves forward. When brakes are applied, the IMA system shuts off the engine and conserved power from the electric motor is utilized. This minimizes vibration of the car body and saves fuel when the engine is idling. When the brakes are released, the electric motor will restart the engine. [10]

Among the Honda car models that are using IMA: [13] [14]
Honda J-VX (model 1997 concept car)
Honda Insight (model 1999–2006, 2010–2014)
Honda Dualnote (model 2001 concept car)
Honda Civic Hybrid (model 2003–2016)
Honda Accord Hybrid (model 2005–2007)
Honda CR-Z (model 2009–2016)

Transmission technology

Safety

Honda operates two crash test laboratories to improve safety designs and technologies in their vehicles,[ citation needed ] resulting in the cars scoring five-star ratings in front and side crash tests. [15] A new independent crash test report from Euro NCAP also assessed the 2009 Honda Accord, Honda Civic and Honda Jazz as among Europe's safest cars, with an overall five-star rating. [16] [17] [18]

Vehicle Stability Assist

The Vehicle Stability Assist (VSA) was introduced by Honda to its vehicles in 1997. The term is Honda's version of Electronic Stability Control (ESC), [19] an active safety feature developed to correct oversteer and understeer by using several sensors to detect loss of steering control and traction while simultaneously braking individual wheels to help the vehicle regain stability.

How VSA works

VSA combines the Anti-lock Braking System (ABS) and Traction Control System (TCS) with side-slip control to help stabilize the vehicle whenever it turns more or less than desired. ABS is an existing system that prevents the vehicle's wheels from locking up under braking, especially in slippery road conditions. For the ABS to work, the system relies on the computed input from a steering angle sensor to monitor the driver's steering direction, the yaw sensor to detect the momentum of which the wheels are steering (yaw rate), and a lateral acceleration (g-force) sensor to signal the changes in speed. At the same time, the TCS will prevent wheel slip during acceleration while the side-slip control stabilizes cornering when the rear or front wheels slip sideways (during oversteer and understeer).

Controlling oversteer - During oversteer, the rear end of the vehicle will spin out because the rotational speed of the rear wheels exceeds the front wheels. VSA will prevent the vehicle from spinning by braking the outer front wheel to produce an outward moment and stabilize the vehicle.

Controlling understeer - During understeer, the front wheels lose traction during cornering due to excessive throttle and this causes the speed difference between the left and front wheels to decrease. When the vehicle steers outwards from the intended trajectory, VSA intervenes by reducing engine power and if necessary, also braking the inner front wheel [20]

G-CON

Honda's G-CON technology aims to protect car occupants by controlling G-forces during a collision. Such collision safety is a result of specific impact absorption by the vehicle's body and frame. [21]

How G-Con works

The structure of the car body is designed to absorb and disperse crash energy throughout the energy compartment. When impact absorption is maximised, the cabin intrusion is automatically minimised to effectively lessen injuries to both occupants and pedestrians. [22]

To optimize front collision performance and reduce the impact when different sized vehicles collide, the G-CON technology is further developed to incorporate Advanced Compatibility Engineering, Honda's term for crash compatibility. Honda has announced that by 2009, the ACE will be a standard feature in all their passenger cars, regardless of size or price. [23]

G-CON is also designed to improve pedestrian safety by minimizing head and chest injuries of the pedestrian during an accident. The company introduced an advanced test dummy, Polar III, which represents the human body and is equipped with sensors to measure the impact of energy on a human body during a car accident. The data obtained has been used to explore pedestrian safety by improving the design of the vehicles. [24]

Advanced mobility

Honda also ventures into advanced mobility research where the findings were used to create ASIMO (Advanced Step in Innovative Mobility), the world's first humanoid robot, as well as Honda's first venture into flight mobility on 3 December 2003, [25] which is HondaJet.

ASIMO

ASIMO at the Expo 2005 HONDA ASIMO.jpg
ASIMO at the Expo 2005

ASIMO, derived from Advanced Step in Innovative Mobility, is pronounced ashimo. It was originally a research and development program undertaken by Honda's associates to challenge the field of mobility. The advancement of the research prompted Honda to conceive a humanoid robot capable of interacting with humans and is able to function in society, such as supporting the disabled and elderly. [26]

ASIMO started as a pair of mechanical legs and had been in development for over 20 years. E0, the first prototype, debuted in 1986 and evolved into prototype E7 in 1991. By 1993, the prototypes progressed to slightly more man-like walking robots. P1 was introduced in 1993, and subsequently P2 and P3 were presented in 1996 and 1997.[ citation needed ] The P3 robot was a gawky prototype standing at 160 cm tall and weighed 130 kg. [27]

In 2000, ASIMO was unveiled as a robot with real-time, flexible walking technology which enables it to walk, run, climb and descend stairs. It is also built in with sound, face, posture, environment and movement recognition technology, and could even respond to Internet connectivity to report news and the weather.

By 2004, Honda announced new technologies that target a higher level of mobility which enabled the next-gen ASIMO to function and interact with people more naturally. The new technologies introduced include:

With 2005's ASIMO model, Honda added advanced level of physical capabilities that allows ASIMO to operate in real-life environments and in sync with people. The new ASIMO weighed 54 kg and stood at 130 cm tall. It could carry objects using a cart, walk with a person while holding hands, perform the tasks of a receptionist, carry out delivery service and be an information guide. In addition to enhanced visual sensors, floor surface sensors and ultrasonic sensors, Honda developed an IC

Teleinteraction Communication Card which allows ASIMO to recognize the location and identity of the person who is standing within a 360-degree range. The IC card is held by the person with whom ASIMO interacts. Its mobility was also significantly improved, making it capable of running at 6 km/h and in circular pattern. [29]

By 2007, Honda updated ASIMO with improved intelligence technology that enabled it to operate more autonomously. It could now walk to the nearest charging station to recharge its battery when its power falls under a certain level, and is also capable of choosing its movement when approaching people, whether stepping back or negotiate the right of way. [30]

Honda was also determined to focus its area of research in intelligence capabilities, particularly in developing a technology that uses brain signals to control a robot's movements. [31] By 2009, Honda announced that it has developed a new system, the Brain Machine Interface, which allows human to send commands to ASIMO through thought alone. The first-of-its-kind technology uses electroencephalography (EEG) and near-infrared spectroscopy to record brain activity, combined with a newly developed information-extraction technology to link the analysis and command ASIMO to move. [32] An electronic helmet is developed to allow humans to control the robot just by thinking about making the movement. This was demonstrated by scientists at the Honda Research Institute, who showed that it took only a few seconds for thought to be translated into robotic action. The technology is still under development and is not yet ready for general use. [33]

ASIMO have travelled across the globe to appear not only at motor shows and schools but prestigious science and engineering events. [26] To demonstrate its latest capabilities, ASIMO introduced the versatility of the new Honda Insight at the 2009 Geneva Motor Show. It completed 54 rounds of 15-minute public performances over 13 days, running, walking and interacting with the crowd. [34]

Related Research Articles

<span class="mw-page-title-main">Anti-lock braking system</span> Safety anti-skid braking system used on aircraft and land vehicles

An anti-lock braking system (ABS) is a safety anti-skid braking system used on aircraft and on land vehicles, such as cars, motorcycles, trucks, and buses. ABS operates by preventing the wheels from locking up during braking, thereby maintaining tractive contact with the road surface and allowing the driver to maintain more control over the vehicle.

<span class="mw-page-title-main">Honda CR-X</span> Motor vehicle

The Honda CR-X, originally launched as the Honda Ballade Sports CR-X in Japan, is a front-wheel-drive sport compact car manufactured by Honda from 1983 until 1991. The first generation CRX was marketed in some regions outside Japan as the Honda Civic CRX. Although there are many supposed definitions for the acronym CR-X, the most widely accepted is "Civic Renaissance Experimental".

<span class="mw-page-title-main">Honda Integra</span> Motor vehicle

The Honda Integra, marketed in North America as the Acura Integra, is an automobile produced by the Japanese automobile manufacturer Honda from 1985 until 2006, and then since 2021. It succeeded the Quint as a more luxurious and sport-oriented derivative of the Civic. The Integra was one of the launch models for Acura in the US in 1986 alongside Acura Legend. Throughout its production run, the Integra was highly regarded for its handling and performance. The 1995–2001 Integra Type R is widely regarded as one of the best front-wheel-drive cars of all time.

<span class="mw-page-title-main">Honda Prelude</span> Motor vehicle

The Honda Prelude is a car produced by Japanese manufacturer Honda over five generations from 1978 to 2001. It was a two-door coupé and was loosely derived from the Honda Accord. The Prelude was used by Honda to introduce the Japanese Honda retail sales chain Honda Verno, with the international release of the model following shortly after. Production of the Prelude concluded in 2001 upon the introduction of the fourth-generation Integra. The Prelude name was originally trademarked by Toyota, but was amicably given to Honda for use. The Prelude complied with the series of music-themed vehicle names which Honda used at the time, along with the Accord, Quintet, Concerto, Jazz, and Ballade.

<span class="mw-page-title-main">Honda Insight</span> Motor vehicle

The Honda Insight is a hybrid electric vehicle that is manufactured and marketed by Honda. Its first generation was a two-door, two passenger liftback (1999–2006) and in its second generation was a four-door, five passenger liftback (2009–2014). In its third generation, it became a four-door sedan (2018–2022). It was Honda's first model with Integrated Motor Assist system and the most fuel efficient gasoline-powered car available in the U.S. without plug-in capability — for the length of its production run.

<span class="mw-page-title-main">Honda Inspire</span> Motor vehicle

The Honda Inspire is a mid-size sedan introduced by Honda in 1990 derived from Honda Accord chassis. The first Inspire debuted in 1990 as the Accord Inspire, a sister nameplate to the Honda Vigor, but sold at different retail channels in Japan, known as Honda Verno for the Vigor/Saber, and the Inspire at Honda Clio stores.

<span class="mw-page-title-main">VTEC</span> Automobile variable valve timing technology

VTEC is a system developed by Honda to improve the volumetric efficiency of a four-stroke internal combustion engine, resulting in higher performance at high RPM, and lower fuel consumption at low RPM. The VTEC system uses two camshaft profiles and hydraulically selects between profiles. It was invented by Honda engineer Ikuo Kajitani. It is distinctly different from standard VVT systems which change only the valve timings and do not change the camshaft profile or valve lift in any way.

<span class="mw-page-title-main">Honda CR-X del Sol</span> Motor vehicle

The Honda CR-X del Sol is a two-seater targa top car manufactured by Honda from 1992 until 1998. Despite the body resemblance to a mid-engine car design, the del Sol is based on the front-engined Honda Civic platform and was the successor to the Honda CR-X.

<span class="mw-page-title-main">Honda Ballade</span> Motor vehicle

The Honda Ballade is a subcompact automobile built by Honda of Japan. It began as a four-door higher equipment content version of the Civic in 1980. The Ballade was developed at the same time the Honda Vigor appeared, which was a higher content Honda Accord. In Japan, the Ballade was sold exclusively at Honda Verno dealerships alongside the Vigor, Prelude, CR-X, and Quint. In the UK it was launched at the same time as the very similar Triumph Acclaim with which it shared a Honda-built engine.

<span class="mw-page-title-main">Honda K engine</span> Motor vehicle engine

The Honda K-series engine is a line of four-cylinder four-stroke car engine introduced in 2001. The K-series engines are equipped with DOHC valvetrains and use roller rockers on the cylinder head to reduce friction. The engines use a coil-on-plug, distributorless ignition system with a coil for each spark plug. This system forgoes the use of a conventional distributor-based ignition timing system in favor of a computer-controlled system that allows the ECU to control ignition timings based on various sensor inputs. The cylinders have cast iron sleeves similar to the B- and F-series engines, as opposed to the FRM cylinders found in the H- and newer F-series engines found only in the Honda S2000.

Super Handling-All Wheel Drive (SH-AWD) is a full-time, fully automatic, all-wheel drive traction and handling system, combining front-rear torque distribution control with independently regulated torque distribution to the left and right rear wheels, to freely distribute the optimum amount of torque to all four wheels in accordance with driving conditions." The system was announced in April 2004, and first introduced in the North American market in the second generation 2005 model year Acura RL, and in Japan as the fourth generation Honda Legend.

The following outline is provided as an overview of and topical guide to automobiles:

<span class="mw-page-title-main">Honda Civic (fourth generation)</span> Motor vehicle model, 1987–1991

The fourth-generation Honda Civic is an automobile produced by Honda from 1987 until 1991 with the wagon continuing in production in some markets until 1996. The suspension had a new double-wishbone suspension in the front and an independent suspension in the rear, the wheelbase was increased to 98.4 inches (250 cm), and the body was redesigned with a lower hood line and more glass, giving less drag. The redesigned Civic was introduced in 1987 for the 1988 model year. The fourth-generation Civic would be available in three variants; 3-door hatchback, 4-door sedan and 5-door wagon with various trim levels offered in each variant.

<span class="mw-page-title-main">Honda Civic (fifth generation)</span> Motor vehicle model, 1991–1995

The fifth-generation Honda Civic is an automobile produced by Honda from 1991 until 1995. It debuted in Japan on September 9, 1991. At its introduction, it won the Car of the Year Japan award for the second time. Fifth generation cars were larger than their predecessors, had more aerodynamic bodies, and the wheelbase was increased to 257 cm (101.3 inches)—for the three-door hatchback—and to 262 cm (103.2 inches)—for the four-door sedan. The Civic Shuttle station wagon was not part of the fifth generation and was dropped for overseas markets, while the previous generation wagon continued in Japan and Europe.

<span class="mw-page-title-main">Honda Civic (sixth generation)</span> Motor vehicle

The sixth-generation Honda Civic is an automobile produced by Honda from 1995 until 2000. It was introduced in 1995 with 3-door hatchback, 4-door sedan and 2-door coupe body styles, replicating its predecessor's lineup. The sixth-generation Civic offered two new 1.6-liter 4-cylinder engines and a new continuously variable transmission (CVT) on the HX model. The coupe and sedan are 2.3 in (58 mm) longer and the hatchback is 4.3 in (109 mm) longer than the previous generation Civic. This was the last generation of Civic to have front double-wishbone suspension, as the succeeding seventh generation would change the front suspension to a MacPherson strut.

<span class="mw-page-title-main">Honda Civic (seventh generation)</span> Motor vehicle

The seventh-generation Honda Civic is an automobile produced by Honda from 2000 until 2005. It debuted in September 2000 as a 2001 model. Its exterior dimensions stayed similar to the outgoing predecessor, with interior space significantly increased, bumping up it up to the compact car size designation. A notable feature was the flat rear floor that gave better comfort to the rear seat passengers. This generation abandoned the front double wishbone suspension, used previously from fourth to sixth generations, replacing it with MacPherson struts. This generation was the last to offer 4WD variants.

<span class="mw-page-title-main">Honda Civic (eighth generation)</span> Motor vehicle

The eighth-generation Honda Civic is a range of compact cars (C-segment) manufactured by Honda between 2005 and 2012, replacing the seventh-generation Civic. Four body styles were introduced throughout its production run, which are sedan, coupe, and both three-door and five-door hatchback. The sedan version was introduced with two distinct styling for different markets, with one of them sold as the Acura CSX in Canada and as the Ciimo 1.8 in China from 2012 until 2016. The hatchback versions formed the European-market Civic range, which received a different architecture, body design and smaller footprint, and solely produced in Swindon, United Kingdom.

<span class="mw-page-title-main">Honda Accord (North America eighth generation)</span> Motor vehicle

The North American eighth generation Honda Accord is a mid-size car introduced in August 2007 for the 2008 model year. It is also marketed in parts of Asia and Australasia, and as the Honda Inspire in Japan.

<span class="mw-page-title-main">Honda CR-V (third generation)</span> Third-generation Honda CR-V

The third generation Honda CR-V was launched for the 2007 model year. It went on sale in the U.S. during late September 2006. Unlike preceding models, it features a rear liftgate rather than a side-opening rear door and no longer has the spare tire mounted on the rear door. The new CR-V is lower, wider and shorter than the previous models; the length decrease is attributed mostly to the fact that the spare wheel no longer adds length to the back of the vehicle. A lowering of the center of gravity is another benefit of the spare wheel being located underneath the rear cargo area. The center rear seat pass-through was also introduced as a new feature on the third generation.

<span class="mw-page-title-main">Honda Fit (first generation)</span> Motor vehicle

The first generation Honda Fit is a subcompact car or supermini manufactured by Honda from 2001 to 2008. It debuted in June 2001 in Japan and subsequently was introduced in Europe, Australia, South America, South Africa and Southeast Asia (2003), China, and Mexico.

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