Motion control device for vehicle

• US 8,639,427 B2
• Filed: 08/04/2010
• Issued: 01/28/2014
• Est. Priority Date: 08/05/2009
• Status: Active Grant

• Current Assignee: Advics Company Limited (Aisin Corp.)
• Original Assignee: Advics Company Limited (Aisin Corp.)
• Inventors: Yasui, Yoshiyuki
• Primary Examiner(s): Tran, Khoi
• Assistant Examiner(s): MOTT, ADAM R
• Application Number:
  US12/850,191
• Publication Number:
  US 20110035129A1
• Time in Patent Office: 1,273 Days
• Field of Search: 701/70, 701/71, 701/72, 701/78, 701/79, 701/82, 701/83, 701/91, 701/300, 701/301
• US Class Current: 701/70
• CPC Class Codes: B60T 8/17551 determining control parameters related to vehicle stability used in the regulation, e.g. by calculations involving measured or detected parameters
• CPC Class Codes: B60T 8/17558 specially adapted for collision avoidance or collision mitigation road vehicle drive control systems for collision avoidance otherwise than by controlling a particular sub-unit B60W30/09
• CPC Class Codes: B60T 8/885 using electrical circuitry

Abstract

A motion control device for a vehicle includes a braking means for applying a brake torque to each of a plurality of wheels of the vehicle, an avoidance control means for calculating a first target quantity, used for an avoidance control for applying the brake torque to each wheel via the braking means in order to avoid an emergency state of the vehicle, a stabilization control means for determining a target wheel, to which the brake torque is applied, out of the wheels and calculating a second target quantity used for a stabilization control for applying the brake torque to the target wheel in order to ensure a vehicle stability, and a brake control means for controlling the brake torque applied to a non-target wheel based on the first target quantity and controlling the brake torque applied to the target wheel based on the first and second target quantities.

Claims

1. A motion control device for a vehicle, comprising:

a braking means for applying a brake torque to each of a plurality of wheels of the vehicle;

an avoidance control means for calculating a first target quantity and a first actual quantity, which are used for an avoidance control for applying the brake torque to each of the plurality of the wheels via the braking means in order to avoid an emergency state of the vehicle in which a collision of the vehicle against a forward obstacle occurs, each of the first target quantity and the first actual quantity corresponding to the brake torque;

a stabilization control means for determining a target wheel out of the plurality of the wheels as a target of a supply of the brake torque and calculating a second target quantity used for a stabilization control for applying the brake torque to the target wheel via the braking means in order to ensure a stability of the vehicle, the second target quantity corresponding to the brake torque; and

a brake control means for calculating the brake torque to be applied to a non-target wheel, which differs from the target wheel, on the basis of the first target quantity corresponding to the non-target wheel and calculating the brake torque to be applied to the target wheel on the basis of a target quantity which is obtained by adding the first actual quantity corresponding to the non-target wheel and the second target quantity corresponding to the target wheel in a case where the stabilization control means performs the stabilization control after the avoidance control means performs the avoidance control.