Toyota announced today that its Brake Assist, which helps apply proper braking power, can now—as a world's first*1—coordinate with a vehicle's navigation system.
TMC's latest Brake Assist engages when a driver suddenly applies the
brakes in response to stop-sign-proximity warnings provided by the
navigation system through its display screen and aurally. The
navigation system is able to provide the warnings by drawing on
stop-sign information contained within its map data. The Brake Assist
optimally adjusts the braking force based on both vehicle-position
information (obtained using a rear-mounted camera) and the actual force
with which the driver has applied the brakes. TMC hopes that this new
technology, developed in conjunction with Aisin AW CO., Ltd., Zenrin
Co., Ltd. and Toyota Mapmaster Incorporated, will help reduce
collisions at intersections; it intends to offer it on vehicle models
scheduled for launch in Japan in the near future.
The development of the navigation-linked Brake Assist follows TMC's
development in June 2007 of the world's first system to employ car
navigation-system map data to warn drivers both visually and aurally of
stop signs ahead—a system TMC enhanced in September 2007 by adding an
aural warning that is activated when the driver does not begin to
decelerate upon nearing the stop line.
As a part of its efforts to realize sustainable mobility, TMC intends
to strengthen its traffic safety initiatives in the future through: 1)
the development of even safer vehicles and technologies based on TMC's
Integrated Safety Management Concept*2,
2) participation in the creation of a safe traffic environment and 3)
activities designed to educate people in traffic safety, thereby
contributing to the complete elimination of traffic casualties, which
can be viewed as the ultimate hope of a society that values mobility.
*1. As of January 2008, according to TMC survey.
*2. TMC's safety technology and vehicle development concept, aimed at
realizing vehicles that do not cause accidents by combining safety
technologies and systems to provide optimal driving support based on
actual driving conditions
| Outline of Stop-sign Warning System and Navigation-linked Brake Assist |
| Type of Support |
Function |
Activation Timing |
| Stop-sign alert |
Alerts driver visually and aurally to stop signs |
Approx. 100m before stop sign |
Stop-sign
reminder warning |
Issues voice warning to driver in event driver has not begun decelerating |
Approx. four seconds before expected arrival at stop sign |
Navigation-linked
Brake Assist |
Optimally adjusts braking force for braking aimed at stopping at stop signs |
When driver suddenly applies brakes following reminder warning |
Note:
The system is currently limited to stop signs on roads with four lanes
or more in Tokyo’s 23 wards and the cities of Yokohama, Nagoya and
Osaka. TMC plans to expand the area covered by the system in the future.
Stop-sign Warning Display (available only in Japanese for the Japanese market)
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