Method for controlling engine torque of automatic transmission for vehicles and system thereof

An engine torque, automatic transmission technology, applied in the direction of machine/engine, engine control, electrical control, etc., can solve the problems of clutch durability deterioration, abnormal shifting, etc.

Inactive Publication Date: 2008-02-06
HYUNDAI MOTOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0011] Therefore, the durability of the clutch may deteriorate and abnormal shifting may occur

Method used

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  • Method for controlling engine torque of automatic transmission for vehicles and system thereof
  • Method for controlling engine torque of automatic transmission for vehicles and system thereof

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Embodiment approach

[0038] FIG. 1 is a block diagram of a system for controlling engine torque of an automatic transmission of a vehicle according to an exemplary embodiment of the present invention.

[0039] As shown in FIG. 1, according to an exemplary embodiment of the present invention, a system for controlling engine torque of an automatic transmission of a vehicle may include a vehicle speed detector 10, an engine speed detector 20, a brake switch 30, a throttle valve opening detection 40, position detector 50, oil temperature detector 60 and transmission control unit 70.

[0040] The vehicle speed detector 10 detects the traveling speed of the vehicle and transmits corresponding information therein to the transmission control unit 70 .

[0041] The engine speed detector 20 is mounted on an output shaft of the engine 80 . The engine speed detector 20 detects the speed of the engine 80 and transmits corresponding information therein to the transmission control unit 70 .

[0042] The brake ...

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Abstract

A method and system of controlling an engine torque of an automatic transmission calculate a current oil temperature in a torque converter and restrict an engine torque based on the calculated current oil temperature if the torque converter is determined to be in a stall state. The method may include detecting vehicle information; determining whether a stall condition is satisfied; calculating, if the stall condition is satisfied, a current oil temperature in a torque converter; comparing the current oil temperature to a predetermined temperature; and controlling the engine torque when the current oil temperature is higher than or equal to the predetermined temperature.

Description

[0001] Cross References to Related Applications [0002] This application claims priority and related rights to Korean Patent Application No. 10-2006-0073008 filed with the Korean Intellectual Property Office on August 2, 2006, the entire contents of which are hereby incorporated by reference. technical field [0003] The present invention relates to a method and system for controlling the engine torque of an automatic transmission of a vehicle. More specifically, the present invention relates to a method for controlling vehicle engine torque of an automatic transmission and a system thereof capable of calculating the current oil temperature in a torque converter and based on the calculation if the torque converter is in a stall condition The obtained current oil temperature limits engine torque. Background technique [0004] The automatic transmission controls hydraulic pressure by operating at least one solenoid valve in accordance with traveling conditions such as vehicl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H59/00F16H59/72F16H59/36F16H59/14F02D29/00F02D29/02F02D45/00F16H59/10F16H59/24F16H59/44F16H59/74F16H61/12F16H63/50
CPCF02D2250/26F16H63/50F02D2400/12F16H59/72B60W10/06F02D41/0215B60W30/1843B60W10/023F02D41/0225
Inventor 权赫彬
Owner HYUNDAI MOTOR CO LTD
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