Vehicle integrated control system

• US 7,522,983 B2
• Filed: 12/13/2004
• Issued: 04/21/2009
• Est. Priority Date: 12/25/2003
• Status: Expired due to Fees

• Current Assignee: Toyota Jidosha Kabushiki Kaisha (Toyota Motor Corporation)
• Original Assignee: Toyota Jidosha Kabushiki Kaisha (Toyota Motor Corporation)
• Inventors: Hirose, Masanori, Hashimoto, Yoshiyuki, Otake, Hirotada, Takamatsu, Hideki
• Primary Examiner(s): ARTHUR JEANGLAUDE, GERTRUDE
• Application Number:
  US10/583,661
• Publication Number:
  US 20070169007A1
• Time in Patent Office: 1,590 Days
• Field of Search: 701/29, 701/33, 701/35, 701/36, 701/48, 340/438, 340/439
• US Class Current: 701/48
• CPC Class Codes: B60W 10/04 including control of propulsion units
• CPC Class Codes: B60W 10/18 including control of braking systems
• CPC Class Codes: B60W 10/20 including control of steering systems
• CPC Class Codes: B60W 2520/10 Longitudinal speed
• CPC Class Codes: B60W 2520/105 Longitudinal acceleration
• CPC Class Codes: B60W 2520/14 Yaw
• CPC Class Codes: B60W 2540/10 Accelerator pedal position
• CPC Class Codes: B60W 2540/12 Brake pedal position
• CPC Class Codes: B60W 2540/18 Steering angle
• CPC Class Codes: B60W 2710/18 Braking system
• CPC Class Codes: B60W 2710/20 Steering systems
• CPC Class Codes: B60W 40/10 related to vehicle motion
• CPC Class Codes: B60W 50/02 Ensuring safety in case of control system failures, e.g. by diagnosing, circumventing or fixing failures
• CPC Class Codes: B60W 50/04 Monitoring the functioning of the control system
• 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

Abstract

An integrated control system includes subsystem with a driving system control subsystem controlling a driving system, a brake system control subsystem controlling a brake system, and a steering system control subsystem controlling a steering system, a subsystem stabilizing a current dynamic state of the vehicle, a subsystem realizing a driving support function such as automatic cruising, and a storage unit for storing shared signals. Each subsystem includes a request unit, an arbitration unit, and an output unit.

Claims

1. An integrated control system for vehicle control, comprising at least three subsystems, operating autonomously and in parallel, and dispensable of a hierarchical system for a level higher than the subsystem, the integrated control system comprising

a sensing unit that senses and stores information relating to a vehicle state,

wherein a first subsystem provides a basic control function, and comprises

a first request unit that calculates a first control quantity based on at least part of the sensed information received from the sensing unit,

a first arbitration unit that arbitrates the first control quantity received from the first request unit and at least a second control quantity received from a second arbitration unit of a second subsystem, and

an output unit that controls an actuator of the vehicle based on the arbitration result of the first arbitration unit,

wherein the second subsystem provides a stabilization control function, and comprises

a second request unit that calculates a third control quantity based on at least part of the sensed information received from the sensing unit, and

the second arbitration unit that arbitrates the third control quantity and a fourth control quantity received from a third arbitration unit of a third subsystem of the subsystems in order to output the second control quantity to the first arbitration unit of the first subsystem,

wherein the third subsystem provides a driving support function, and comprises

a third request unit that calculates a fifth control quantity based on at least part of the sensed information received from the sensing unit, and

the third arbitration unit that arbitrates the fifth control quantity received from the fifth request unit in order to output the fourth control quantity to the second arbitration unit of the second subsystem.

2. The vehicle integrated control system according to claim 1, wherein each of the arbitration units includes a determining unit that determines priority of information.

3. The vehicle integrated control system according to claim 1, wherein each of the arbitration units includes a correcting unit that corrects information.

4. The vehicle integrated control system according to claim 1, Wherein each of the arbitration units includes a processor that processes information.

5. The vehicle integrated control system according to claim 1, wherein the first subsystem further comprises a driving system control subsystem, a brake system control subsystem, and a steering system control subsystem.

6. The vehicle integrated control system according to claim 1, wherein the third subsystem further comprises an automatic cruise subsystem controlling the vehicle for automatic cruising or pseudo automatic cruising of the vehicle.

7. The vehicle integrated control system according to claim 1, wherein the second subsystem further comprises a dynamic stabilization subsystem controlling the vehicle so as to stabilize a behavior state of the vehicle.