VEHICLE CONTROL METHOD AND VEHICLE CONTROL SYSTEM

• US 20160194000A1
• Filed: 07/11/2014
• Published: 07/07/2016
• Est. Priority Date: 07/30/2013
• Status: Active Grant

• Current Assignee: Toyota Jidosha Kabushiki Kaisha (Toyota Motor Corporation)
• Original Assignee: Toyota Jidosha Kabushiki Kaisha (Toyota Motor Corporation)
• Inventors: TAKI, Naoki, UECHI, Masaaki, MIZOGUCHI, Yoji, HARADA, Hiroshi, KONDO, Kumiko
• Granted Patent: US 10,099,688 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: B60T 2201/022 Collision avoidance systems
• CPC Class Codes: B60T 7/22 initiated by contact of vehicle, e.g. bumper, with an external object, e.g. another vehicle , or by means of contactless obstacle detectors mounted on the vehicle
• CPC Class Codes: B60W 10/06 including control of combustion engines
• 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 2050/143 Alarm means
• CPC Class Codes: B60W 2540/10 Accelerator pedal position
• CPC Class Codes: B60W 2540/103 Accelerator thresholds, e.g. kickdown
• CPC Class Codes: B60W 2540/18 Steering angle
• CPC Class Codes: B60W 2540/22 Psychological state; Stress level or workload
• CPC Class Codes: B60W 2554/00 Input parameters relating to objects
• CPC Class Codes: B60W 2710/182 Brake pressure, e.g. of fluid or between pad and disc
• CPC Class Codes: B60W 30/08 Active safety systems predicting or avoiding probable or impending collision or attempting to minimise its consequences
• CPC Class Codes: B60W 30/09 Taking automatic action to avoid collision, e.g. braking and steering

Abstract

A vehicle control method of performing automatic braking for automatically braking a vehicle or alarm output, depending on a possibility of a collision between the vehicle and an obstacle, includes: cancelling the automatic braking or the alarm output, when an accelerator operation amount is equal to or larger than a predetermined threshold value, during the automatic braking or the alarm output, and cancelling the automatic braking or the alarm output, when a given cancellation condition is satisfied under a situation where the accelerator operation amount of the vehicle is smaller than the predetermined threshold value, during the automatic braking or the alarm output.

Claims

1. A vehicle control method of performing automatic braking for automatically braking a vehicle or alarm output, depending on a possibility of a collision between the vehicle and an obstacle, comprising:

cancelling the automatic braking or the alarm output, when an accelerator operation amount is equal to or larger than a predetermined threshold value, during the automatic braking or the alarm output; and

cancelling the automatic braking or the alarm output, when a given cancellation condition is satisfied under a situation where the accelerator operation amount of the vehicle is smaller than the predetermined threshold value, during the automatic braking or the alarm output.

2. The vehicle control method according to claim 1, wherein

the given cancellation condition is satisfied when a specified collision avoidance operation of a driver is detected.

3. The vehicle control method according to claim 2, wherein

the specified collision avoidance operation is detected based on a combination of an accelerator operation that increases the accelerator operation amount, and a steering operation.

4. The vehicle control method according to claim 2, wherein

under a situation where an overlap range between the vehicle and the obstacle in a lateral direction is located closer to one of right and left sides of the vehicle, the specified collision avoidance operation includes a steering operation to turn the vehicle in such a direction as to reduce the overlap range.

5. The vehicle control method according to claim 2, wherein

the specified collision avoidance operation is detected based on a combination of a condition of the driver'"'"'s face determined based on an image recognition result of a face image of the driver, and an accelerator operation or a steering operation.

6. The vehicle control method according to claim 5, wherein

the specified collision avoidance operation includes the accelerator operation that increases the accelerator operation amount, or the steering operation, which is performed after the driver faces front from a condition where the driver fails to face front, or after the driver'"'"'s condition changes from a condition of slumber into a condition of wakefulness.

7. A vehicle control system comprising:

a sensor (12) that detects a condition of an obstacle around a vehicle;

an accelerator pedal position sensor (23) that detects an operation amount of an accelerator pedal; and

an ECU (10) that outputs a signal that requests automatic .braking for automatically braking the vehicle or generation of an alarm, based on the condition of the obstacle, and stops output of the signal when the operation amount of the accelerator pedal is equal to or larger than a first threshold value, or when the operation amount of the accelerator pedal is smaller than the first threshold value, and a given first condition is satisfied.