US 5,197,008 A · System for controlling the output power of a motor vehicle

Abstract

A motor vehicle output power control system quickly reduces the drive torque produced by an engine on a motor vehicle depending on the magnitude of a lateral acceleration which is produced when the motor vehicle makes a turn, or the amount by which drive wheels slips when the motor vehicle is accelerated. A target drive torque depending on the lateral acceleration and a demanded drive torque demanded by the driver of the motor vehicle are added at a predetermined ratio into a turn target drive torque, which is selected as a final target drive torque. The motor vehicle output power control system includes an electronic control unit for controlling an actuator to lower the output drive torque of the engine, independent from controlling action of the driver, such that the output drive torque of the engine is equalized to the final target drive torque.

Claims24

Dependent claims

A system for controlling the output power of a motor vehicle having an engine, comprising:

operation means to be operated by the driver of the motor vehicle for controlling the drive torque produced by the engine;
torque control means for controlling the drive torque produced by the engine independently of said operation means operated by the driver of the motor vehicle;
target drive torque calculating means for calculating a target drive torque depending on a lateral acceleration of the motor vehicle;
operation amount detecting means for detecting an operated amount of said operation means for controlling the drive torque;
demanded drive torque calculating means for calculating a demanded drive torque based on said operated amount;
turn torque calculating means for adding said target drive torque and said demanded drive torque at a predetermined ratio to determine a turn target drive torque;
selecting means for selecting said turn target drive torque as a final target drive torque;
and
electronic control means for controlling said torque control means to equalize the drive torque produced by the engine to said final target drive torque.

6 more elements

A method for controlling the output power of a motor vehicle having an engine, comprising the steps of:

(a) controlling the drive torque produced from the engine by the driver of the motor vehicle;
(b) controlling the drive torque produced from the engine independently of the controlling at said step (a) by the driver of the motor vehicle;
(c) calculating a target drive torque depending on a lateral acceleration of the motor vehicle;
(d) detecting an operated amount for controlling the drive torque of said step (a);
(e) calculating a demanded drive torque based on said operated amount;
(f) adding said target drive torque and said demanded drive torque at a predetermined ratio to determine a turn target drive torque;
(g) selecting said turn target drive torque as a final target drive torque;
and
(h) equalizing the drive torque produced by the engine to said final target drive torque by controlling said drive torque at step (b).

6 more elements

Dependencies are inferred from the claim text.

System for controlling the output power of a motor vehicle

Life of this patent

System for controlling the output power of a motor vehicle

Life of this patent

Abstract

Claims24