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Controlling device of automatic speed variator for vehicle

A technology for automatic transmissions and control devices, applied in the direction of control devices, transmission devices, fluid transmission devices, etc., can solve the problems of increased number of valves, complicated device structure, large-scale, etc., and achieve the effect of reducing fuel costs

Inactive Publication Date: 2002-03-20
HONDA MOTOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the number of valves constituting the control device increases, and there is a problem that the structure of the device becomes complicated and large.

Method used

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  • Controlling device of automatic speed variator for vehicle
  • Controlling device of automatic speed variator for vehicle
  • Controlling device of automatic speed variator for vehicle

Examples

Experimental program
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Embodiment Construction

[0018] Preferred embodiments of the present invention will be described below with reference to the drawings. First, refer to figure 2 A structural example showing an automatic transmission provided with the control device of the present invention will be described. This automatic transmission TM is provided with a torque converter TC connected to an engine output shaft ES. The torque converter TC has a pump element 1 connected to the engine output shaft ES through a converter housing 5 , a stator element 2 fixedly held by a one-way clutch, and a turbine element 3 connected to a transmission input shaft 11 .

[0019] A lock-up clutch 4 connected to the turbine element 3 is disposed inside the converter housing 5 . The lock clutch 4 divides the inner space of the converter housing 5 into a lock engagement space 6 and a lock release space 7, and the engagement of the hydraulic control lock clutch is controlled in the two spaces 6, 7. When the oil pressure in the lock engageme...

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PUM

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Abstract

An automatic transmission for a vehicle comprises a torque converter TC equipped with a lock-up clutch 4. This automatic transmission further comprises FIRST~FOURTH speed clutches 31~34 for a shift control executing a shift from an off-going speed ratio to an on-coming speed ratio by controlling the release of the hydraulic pressure from the off-going clutch and by controlling the supply of the hydraulic pressure to the on-coming clutch. A control system comprises first and second off-going pressure releasing valves 70 and 80, which release the hydraulic pressure from the off-going clutch during the shift, a lock-up control valve 40 and a lock-up timing valve 50, which control the engagement of the lock-up mechanism, and a linear solenoid valve 60, which supplies a control pressure to these valves and controls the operation of these valves.

Description

technical field [0001] The present invention relates to a control device for an automatic transmission for a vehicle, which has a torque converter with a lock and is provided during transmission of power from an engine to drive wheels to change gears. More specifically, it relates to a control device for engaging a lock mechanism and controlling shifting in the automatic transmission for a vehicle. Background technique [0002] Automatic transmissions for vehicles have been widely used from a long time ago. Generally speaking, it is composed of a plurality of gear trains arranged in parallel, a plurality of friction engagement elements such as friction clutches provided to select desired gears from these gear trains, and a system for changing speeds to control these friction engagement elements. Composed of variable speed control valves. For example, the devices disclosed in JP-A-11-108169 and JP-A-11-201270 are such control devices for automatic transmissions for vehicles...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H61/00F16H61/14
CPCF16H61/143Y10T74/19163
Inventor 木村宏行冈崎祐治加川雅道
Owner HONDA MOTOR CO LTD