VEHICLE BEHAVIOR CONTROL APPARATUS

• US 20090118906A1
• Filed: 10/21/2008
• Published: 05/07/2009
• Est. Priority Date: 10/30/2007
• Status: Active Grant

• Current Assignee: Honda Motor Co., Ltd. (Honda Motor Company)
• Original Assignee: Honda Motor Co., Ltd. (Honda Motor Company)
• Inventors: Tanaka, Kuniyoshi
• Granted Patent: US 8,255,122 B2
• Time in Patent Office: Days
• US Class Current: 701/41
• CPC Class Codes: B60W 30/02 Control of vehicle driving stability
• CPC Class Codes: B60W 50/06 Improving the dynamic response of the control system, e.g. improving the speed of regulation or avoiding hunting or overshoot
• CPC Class Codes: B62D 6/003 in order to control vehicle yaw movement, i.e. around a vertical axis B62D6/007 takes precedence

Abstract

In an electronic control unit including a master integrated ECU and a slave VSA ECU, the VSA ECU is provided with a request restriction unit which receives a request of the integrated ECU. The request restriction unit prohibits the use of the request and prioritizes the control of the VSA ECU when a direction of vehicle behavior controlled by the request of the integrated ECU and a direction of the vehicle behavior controlled by the VSA ECU itself are different.

Claims

1. A vehicle behavior control apparatus, comprising:

a plurality of vehicle control units for controlling vehicle behavior; and

an integrated control unit which outputs a request to the plurality of vehicle control units and integrally controls the plurality of vehicle control units,

the plurality of vehicle control units controlling the vehicle behavior based on their own requests and the request from the integrated control unit, wherein

if a direction of the vehicle behavior controlled by the request from at least one of the plurality of vehicle control units is different from a direction of the vehicle behavior controlled by the request of the integrated control unit,

the at least one of the plurality of vehicle control units restricts the request of the integrated control unit.

3. The vehicle behavior control apparatus according to claim 1, wherein the vehicle control unit is provided with a request restriction unit that restricts the request of the integrated control unit.

5. The vehicle behavior control apparatus according to claim 1, wherein the vehicle control unit includes a Vehicle Stability Assist system, a Four Wheel Drive ECU, an Electric Power Steering ECU, and a Four Wheel Steering ECU.

2. A vehicle behavior control apparatus, comprising:

a plurality of vehicle control units for controlling vehicle behavior; and

an integrated control unit which outputs a request to the plurality of vehicle control units and integrally controls the plurality of vehicle control units,

the plurality of vehicle control units controlling the vehicle behavior based on their own requests and the request from the integrated control unit, wherein

if the integrated control unit sends the request to at least one of the plurality of vehicle control units to control the vehicle behavior in a direction that further increases understeer when the at least one of the plurality of the vehicle control units recognizes that the vehicle is in the understeer, or if the integrated control unit sends the request to at least one of the plurality of vehicle control units to control the vehicle behavior in a direction that further increases oversteer when the at least one of the vehicle control units recognizes that the vehicle is in the oversteer,

the at least one of the plurality of vehicle control units restricts the request from the integrated control unit.

4. The vehicle behavior control apparatus according to claim 2, wherein the vehicle control unit is provided with a request restriction unit that restricts the request of the integrated control unit.

6. The vehicle behavior control apparatus according to claim 2, wherein the vehicle control unit includes a Vehicle Stability Assist system, a Four Wheel Drive ECU, an Electric Power Steering ECU, and a Four Wheel Steering ECU.