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

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

CN1664418AInactive Publication Date: 2005-09-07TELEFLEX AUTOMOTIVE FRANCE
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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
Comparison scheme
Effect test

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

Patent Timeline
07 Sep 2005
Publication
CN1664418A
IPC
F16H61/28; F16H59/68; F16H61/32; F16H63/30; H02K1/27; H02K3/00; H02K7/18; H02K41/035
CPC
F16H2059/6807; F16H2061/2823; F16H63/304; F16H61/32; H02K41/0358; F16H2063/305
Inventors
让-皮埃尔·巴斯; D·吉梅