FACT BOOK
The 37th Tokyo Motor Show 2003   October.22.2003
Safety Technologies
Improving safety, creating peace of mind
Acting on the principle of 'Respect for the individual,' Honda strives for ever greater safety in all the cars we build—enhancing active safety technologies to help prevent accidents, and passive safety technologies to protect people in the event of an accident. We are also developing pre-crash safety technologies to prevent collisions through risk assessment and mitigate both injury to occupants and damage to the vehicle in the event of a collision. Honda continues to evolve safety technologies through research and real-world crash testing.
Honda Intelligent Driver Support (HiDS):
Reducing the burden on the driver during highway driving
Realizing that alleviating driver fatigue helps prevent accidents, Honda developed the HiDS system to relieve driver stress, reduce fatigue and prevent lapses of concentration during highway driving. HiDS provides highway driving assistance through Intelligent Highway Cruise Control (IHCC), which controls vehicle speed to maintain a safe distance from the vehicle ahead, and the Lane-Keeping Assist System (LKAS), which helps prevent lane departure.
Basic IHCC control pattern
Radar detection: Max. 100 meters ahead in a 16° field of view
Vehicle operating speed: 45-100km/h
Cruise control:No car ahead Deceleration control:Car ahead detected Tracking control:Tracks car ahead Acceleration control:Car ahead pulls away
Cruise control:
No car ahead
Deceleration control:
Car ahead detected
Tracking control:
Tracks car ahead
Acceleration control:
Car ahead pulls away
LKAS operational conditions
Lane-keeping: Straight roads or curves with a radius of 230m or more
Vehicle speed: 65-100km/h
Lane-keeping assist Provides appropriate steering assistance Lane-keeping assist
Provides appropriate steering assistance
Lane departure warning Warns by alarm when departs from lane Lane departure warning
Warns by alarm when departs from lane
Pre-crash Safety Technology: CMS and E-pretensioner
Honda's pre-crash safety technology assesses collision risk and mitigates occupant injury and vehicle damage by combining the first-ever Collision Mitigation Brake System (CMS), which uses millimeter-wave radar to gauge distance to the vehicle ahead, warns the driver to help avoid collisions, and regulates the brakes to reduce vehicle speed, with the E-pretensioner, which automatically retracts the seatbelt before a collision occurs to mitigate the impact on occupants and vehicle damage.
Collision Mitigation Brake System and E-Pretensioner
(operation outline)
Approaching vehicle ahead
[Approaching vehicle ahead]
When driving, millimeter-wave radar detects vehicles ahead, and the system provides audio and visual warnings if it detects a risk of collision.
Closer to vehicle ahead
[Closer to vehicle ahead]
The system applies light braking and increases seatbelt tension slightly to provide a tactile warning to the driver.
Collision unavoidable
[Collision unavoidable]
The system activates strong braking and ecurely tightens the seatbelt to mitigate injury caused by impact.
G-CON G-FORCE CONTROL TECHNOLOGY
G-force Control Technology: improving crash compatibility
To reduce injuries by controlling the impact-energy (G) of a collision, Honda has simulated real-world collision conditions by conducting test crashes between vehicles of different size, structure and rigidity in the world's first indoor omnidirectional crash test facility. The G-CON technology born of this research enhances self-protection while reducing aggressivity toward other vehicles. To achieve these apparently conflicting objectives, Honda designed an innovative energy-absorbing car body that efficiently absorbs and disperses crash energy throughout the engine compartment. Honda's new crash compatibility body is offered for the first time in the new Life and new Odyssey.
Car-to-car crash test
Car-to-car crash test
Crash compatibility body
G-Control technology reduces pedestrian injury
Honda has designed automobile bodies that help minimize head and chest injuries to pedestrians in the event of a vehicle-pedestrian accident. To further improve pedestrian safety, we have also developed a second-generation pedestrian dummy designed to more faithfully represent the human body, thus yielding more detailed data. Based on the data obtained, we are exploring advanced pedestrian safety technologies designed to reduce injury to the head, chest, abdomen and lower extremities.
Side Curtain Airbag System: mitigating head impact in a side collision
Honda's side curtain airbag system helps reduces the risk of head injury in a side impact. In the event of a side collision, the system provides protection over a wide area of the head, neck and thorax for passengers with a variety of physiques, from children to adults. Side curtain airbags are particularly helpful in preventing the head from impacting the car's center pillar. To ensure that the airbag deploys instantly, covering virtually the entire side window, it is fitted with a low-temperature compressed helium inflator that activates in approximately 0.015sec, allowing the airbag to be made thicker for more effective impact absorption, and reducing shock and injury to the head area at the time of impact.

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