Title:
REAR-END COLLISION PREVENTING DEVICE FOR VEHICLE
Document Type and Number:
Japanese Patent JP3104463
Kind Code:
B2
Abstract:
PURPOSE: To prevent a brake from being operated at an unexpected timing efficiently while a vehicle driver attempts to prevent rear-end collision by means of steering operation in a rear-end collision prevention device for a vehicle provided with an automatic brake device.
CONSTITUTION: Detection signals from a vehicle speed sensor 10, an acceleration sensor 12, a distance measuring sensor 14, a doppler sensor 16 are supplied to an ECU 18. The EUC 18 computes the first inter-vehicle distance XB which permits rear-end collision to be prevent by braking and the second inter-vehicle distance XS which permits rear-end collision to be prevented by means of steering operation based on vehicle speed, relative speed, and an inter vehicle distance. When the detected inter-vehicle distance Δx is more than the second inter-vehicle distance XS even if it is less than the first inter-vehicle distance XB, rear-end collision is prevented by means of a driver's steering operation without operating an automatic brake device 22. The automatic brake device 22 is operated for the first time only when the inter-vehicle distance Δx is less than XB, XS, so it is possible to inhibit the automatic brake device 22 from being operated at an unexpected timing.
Inventors:
Yoshiyuki Hashimoto
Application Number:
JP8181593A
Publication Date:
October 30, 2000
Filing Date:
April 08, 1993
Export Citation:
Assignee:
TOYOTA JIDOSHA KABUSHIKI KAISHA
International Classes:
B60R21/00; B60T7/12; B60W30/00; G08G1/16; (IPC1-7): B60R21/00; B60R21/00; B60T7/12; G08G1/16
Domestic Patent References:
| JP577627A | ||||
| JP4221245A | ||||
| JP558319A | ||||
| JP4232160A |
Attorney, Agent or Firm:
Kenji Yoshida (2 outside)
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