Control device of a transmission, especially for vehicles

A technology for motor vehicles and gearboxes, applied in the field of gearboxes, can solve problems such as long response time and irreversibility, and achieve the effect of reducing friction and the risk of sticking

Inactive Publication Date: 2005-09-07
TELEFLEX AUTOMOTIVE FRANCE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the electric motor and gearbox unit have the disadvantage of relatively long response times (typically around 400 milliseconds (ms) to 700ms) and irreversibility, which means that they must be controlled very precisely, since the gearshift shaft of the gearbox must be controlled by Driven by the motor and gearbox unit to be positioned precisely in one of its predetermined selected positions

Method used

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  • Control device of a transmission, especially for vehicles
  • Control device of a transmission, especially for vehicles
  • Control device of a transmission, especially for vehicles

Examples

Experimental program
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Embodiment Construction

[0030] exist figure 1 In , reference 1 denotes a gear selection device, in particular a lever for turning a shift shaft 3 of an automatic gearbox of a motor vehicle, for example.

[0031] The selector lever 1 is operated by the driver of the vehicle and it moves in a channel having a plurality of predetermined positions, for example of the P-R-N-D type, the selector lever being in any one of those positions for operating the switch to issue an output signal which is transmitted to the control Circuit 4.

[0032] The control circuit 4 generates a control signal for a manipulator 5 which turns the shift shaft 3 in one direction or the other so as to bring it into a predetermined position corresponding to the position of the lever 1 .

[0033] control circuit 4 in figure 2 As shown in more detail in , the control circuit 4 includes a management module 6 which is controlled by the vehicle computer and generates a reference signal which is applied via a modifier 7 and an amplifi...

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PUM

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Abstract

The device has a flat electric actuator (5) rotatably driving a selection axle (3) and having a flat coil (14) rotatably mounted around a fixed axis (16) between two flat permanent magnets (17, 18) carried by a cylinder head. A fitment (15) connects the coil to the selection axle. A power supply unit supplies electric current in any direction in the coil for turning the coil in any direction around the fixed axis.

Description

technical field [0001] The invention relates to a device for controlling an automatic gearbox, in particular a gearbox for a motor vehicle, the device comprising means for actuating at least one shift shaft pivotally mounted in the gearbox. Background technique [0002] In the conventional art, the gear lever is connected to the gearbox by a cable or pipe rodding system, the disadvantages of which are well known. [0003] It has been proposed to replace such cable or pipe wiper systems with an electric motor and gearbox unit associated with a gear lever, which controls microswitches when moved into its different positions. However, the electric motor and gearbox unit have the disadvantage of relatively long response times (typically around 400 milliseconds (ms) to 700ms) and irreversibility, which means that they must be controlled very precisely, since the gearshift shaft of the gearbox must be controlled by The motor and gearbox unit is driven so as to be positioned preci...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H61/28F16H59/68F16H61/32F16H63/30H02K1/27H02K3/00H02K7/18H02K41/035
CPCF16H2059/6807F16H2061/2823F16H63/304F16H61/32H02K41/0358F16H2063/305
Inventor 让-皮埃尔·巴斯D·吉梅让-卢普·弗洛朗
Owner TELEFLEX AUTOMOTIVE FRANCE
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