Motor vehicle braking system

• US 6,450,592 B1
• Filed: 06/05/2001
• Issued: 09/17/2002
• Est. Priority Date: 06/22/2000
• Status: Expired due to Term

• Current Assignee: Advics Company Limited (Aisin Corp.), Koyo Seiko Co., Ltd. (Toyota Motor Corporation)
• Original Assignee: Koyo Seiko Co., Ltd. (Toyota Motor Corporation)
• Inventors: Kato, Kazuhiro, Hayama, Ryouhei, Nakano, Shiro, Segawa, Masaya, Nishizaki, Katsutoshi
• Primary Examiner(s): Schwartz, Christopher P.
• Application Number:
  US09/873,307
• Publication Number:
  US 20020030407A1
• Time in Patent Office: 469 Days
• Field of Search: 364/424.051, 364/426.02, 364/426.03, 364/424.047, 180/167, 180/168, 180/197, 701/38, 701/39, 701/41, 303/140, 303/146, 303/155, 303/185, 303/1, 303/190
• US Class Current: 303/155
• CPC Class Codes: B60T 2260/02 Active Steering, Steer-by-Wire
• CPC Class Codes: B60T 2260/024 Yawing moment compensation during mu-split braking
• CPC Class Codes: B60T 8/1755 Brake regulation specially adapted to control the stability of the vehicle, e.g. taking into account yaw rate or transverse acceleration in a curve road vehicle drive control systems for control of driving stability otherwise than by controlling a particular sub-unit B60W30/02
• CPC Class Codes: B60T 8/246 Change of direction
• CPC Class Codes: B60T 8/505 Pressure reapplication in a mu-split situation, i.e. a situation with different coefficients of friction on both sides of the vehicle
• CPC Class Codes: B60T 8/58 responsive to speed and another condition or to plural speed conditions
• CPC Class Codes: B62D 6/002 computing target steering angles for front or rear wheels B62D7/159 takes precedence

Abstract

A braking system for a motor vehicle is provided, which has an attitude control function. The system includes: a first attitude control circuit for stabilizing the behavior of the motor vehicle by controlling the operation of a steering mechanism of the motor vehicle; a second attitude control circuit for stabilizing the behavior of the motor vehicle by controlling a braking mechanism for applying a braking force to vehicle wheels of the motor vehicle; and a braking control circuit for causing the braking mechanism to generate a maximum braking force on condition that an attitude control is performed for the stabilization of the behavior of the motor vehicle by the first attitude control circuit when a braking command is inputted thereto.

Claims

1. A braking system for a motor vehicle, comprising:

a first attitude control circuit stabilizing a behavior of the motor vehicle by controlling an operation of a steering mechanism of the motor vehicle;

a second attitude control circuit for stabilizing the behavior of the motor vehicle by controlling a braking mechanism for applying a braking force to vehicle wheels of the motor vehicle; and

a braking control circuit for causing the braking mechanism to generate a maximum braking force on condition that an attitude control is performed for stabilization of the behavior of the motor vehicle by the first attitude control circuit when a braking command is inputted thereto.

2. A motor vehicle braking system as set forth in claim 1, wherein the steering mechanism has no mechanical connection to a steering operation member, or is adapted to be brought out of mechanical engagement with the steering operation member.