Title:
BRAKING FORCE CONTROL DEVICE
Document Type and Number:
Japanese Patent JP3788016
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To improve the deceleration and braking stability in the slip control by setting an ABS control start judging threshold value in relation to the set condition of the assist control when the braking force assist control is operated.
SOLUTION: Assist pressure raised valve is integrated per each control cycle after the emergency is judged, and output as the assist command pressure to a brake pressure control unit. Duty ratio of a solenoid valve built in a control type brake assistor device 4 is set on the basis of this output command pressure value. A push rod of a booster is operated in response to the operating speed of the solenoid valve, and as a result, the pressure raising speed of the brake pressure is changed in response to the speed and loaded variable of the own vehicle. In the case where the operation of the assist control is detected and where the control cycle of the slip control (ABS control) is judged as a first cycle, a slipped variable as a control threshold value of the slip control is changed by using the assist pressure raised variable. The slip control is performed by using the changed control threshold value.
Inventors:
Naoki Maruko
Minoru Tamura
Minoru Tamura
Application Number:
JP5831398A
Publication Date:
June 21, 2006
Filing Date:
March 10, 1998
Export Citation:
Assignee:
Nissan Motor Co., Ltd
International Classes:
B60T8/00; B60T8/1761; B60T8/58; (IPC1-7): B60T8/00; B60T8/58
Domestic Patent References:
| JP8295224A | ||||
| JP64063448A | ||||
| JP9039755A | ||||
| JP10095327A |
Attorney, Agent or Firm:
Masamichi Ayata
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