US 9,868,439 B2Granted

Vehicle control system

AssigneeToyota Jidosha Kabushiki Kaisha

InventorsHitoshi Matsunaga, Kazuya Okumura

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Abstract

A vehicle control system is provided to execute a turning performance improving control for stabilizing vehicle behavior by controlling drive force during turning. The vehicle control system is provided with: a steering detecting means that detects a steering operation of a driver; a drive force limiting means that restricts the drive force during execution of a turning performance improving control; and a restriction relaxing means that temporarily changes the drive force in a direction of changing the drive force by the turning performance improving control, if the steering operation of the driver detected by the steering detecting means while restricting the drive force by the drive force limiting means is carried out to increase a steering angle during execution of the turning performance improving control.

Claims11

Dependent claims

A vehicle control system that is configured to stabilize vehicle behavior by controlling drive force during turning, comprising:

a control unit that is configured to:
determine an execution of a steering operation of a driver based on a detection signal from a sensor;
and
restrict the drive force during controlling the drive force to stabilize behavior of the turning vehicle;
and
temporarily change the drive force in a direction of changing the drive force to stabilize the vehicle behavior, when the steering operation of the driver detected while restricting the drive force is carried out to increase a steering angle during controlling the drive force to stabilize the behavior of the turning vehicle,
wherein the control unit is further configured to:
restrict a control amount of the drive force by a predetermined limit value during controlling the drive force to stabilize behavior of the turning vehicle,
stabilize the limit value in a case when the steering operation of the driver is not carried out to increase a steering angle, and
temporarily change the drive force by temporarily changing the limit value in a direction to increase the control amount such that the control amount of the drive force does not follow a required drive force and uncomfortableness or shocks will not be caused by temporarily changing the limit value.

7 more elements

Dependencies are inferred from the claim text.

Facts

Application: 14/424,730Filed 30 May 2013
Priority: JP 2012-19046930 Aug 2012
Published: US 2015/0246675 A13 Sep 2015
Granted: 16 Jan 2018
Term ends: Not estimatedThe source records don’t support an estimate.

Classification10 codes

B60W 30/045
Control of vehicle driving stability: improving turning performance
B60T 8/1755
Using electrical or electronic regulation means to control braking: brake regulation specially adapted to control the stability of the vehicle,…
B60W 10/04
Conjoint control of vehicle sub-units of different type or different function: including control of propulsion units
B60W 10/184
Including control of braking systems: with wheel brakes