VEHICLE DRIVEABILITY CONTROL SYSTEM

• US 20110040447A1
• Filed: 02/16/2009
• Published: 02/17/2011
• Est. Priority Date: 03/10/2008
• Status: Active Grant

• Current Assignee: Honda Motor Co., Ltd. (Honda Motor Company)
• Original Assignee: Honda Motor Co., Ltd. (Honda Motor Company)
• Inventors: Horiuchi, Yutaka
• Granted Patent: US 8,447,471 B2
• Time in Patent Office: Days
• US Class Current: 701/41
• CPC Class Codes: B62D 6/007 adjustable by the driver, e.g. sport mode

Abstract

In a vehicle driveability control system for determining a control variable that is applied to a vehicle for a given control input including a front wheel steering angle according to a response of a vehicle model (10) to the given input, a parameter of the vehicle model is changed according to an output of a vehicle operator skill determining unit (14). Thereby, the vehicle driveability control system can provide a driving property that suits the driving skill of the particular vehicle operator, and can satisfy vehicle operators of all skill levels. In particular, if the vehicle operator is skilled enough to cope with emergency situations, the vehicle is enabled to respond to a quick input with a high responsiveness. Also, the control system is able to adapt itself to an improvement in the skill of a vehicle operator over time.

Claims

1. A vehicle driveability control system for determining a control variable that is applied to a vehicle for a given control input including a front wheel steering angle according to a response of a vehicle model to the given input, comprising:

a vehicle operator skill determining unit; and

a control unit for changing a parameter of the vehicle model according to an output of the vehicle operator skill determining unit,

wherein the control variable that is applied to the vehicle comprises a yaw moment.

2. The vehicle driveability control system according to claim 1, wherein the system comprises an ideal vehicle model, an actual vehicle model and a feed forward control unit that determines the control variable according to a deviation of an output of the actual vehicle model from an output of the ideal vehicle model;

a parameter of the ideal vehicle model being changed according to the output of the vehicle operator skill determining unit.

3. The vehicle driveability control system according to claim 1, wherein the vehicle operator skill determining unit comprises a corrective steering determining unit to count a number of changes in a sign of a steering speed while a yaw movement of the vehicle continues with a same sign.

5. The vehicle driveability control system according to claim 1, wherein the vehicle comprises a rear toe control unit for applying a yaw moment to the vehicle as the control variable.

4. (canceled)