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A method and device for controlling a transmission of a motor vehicle

A technology for motor vehicles and transmissions, applied in the direction of mechanical equipment, devices for preventing/limiting/recovering parts movement of control mechanisms, mechanical control devices, etc., capable of solving problems such as movement and unsafe vehicle conditions

Active Publication Date: 2014-08-27
JAGUAR LAND ROVER LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When this happens, the selector may move due to future vibrations, shocks or even people's inattention, thereby engaging a driving mode (forward, reverse) of the automatic transmission, even if the selector is left in the parking position. And because the selector cannot be locked by a locking mechanism that can only be engaged when the selector is in the nominal park or neutral position, an unsafe vehicle condition can result

Method used

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  • A method and device for controlling a transmission of a motor vehicle
  • A method and device for controlling a transmission of a motor vehicle
  • A method and device for controlling a transmission of a motor vehicle

Examples

Experimental program
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Embodiment Construction

[0038] see figure 1 To 4 , the electrical architecture of a motor vehicle 1 comprising an engine 10 , an automatic gearbox or transmission 11 and a multi-stable selection system 12 is shown.

[0039] The transmission 11 is controlled by a transmission control unit (TCU) 16 including sensors for detecting the position of the transmission. TCU 16 is electrically connected to electronic transmission selector (ETS) 20 by CAN (control area network) 21 and backup CAN 22 , and electronic transmission selector (ETS) 20 is electrically connected to selection system 12 . CAN 21 is used to interconnect these electronic subsystems of the vehicle 1 so that they can communicate with each other as required.

[0040] A selection system 12 is provided in the nacelle for selecting an operating mode of the transmission, such as Park (P), Reverse (R), Neutral (N), Drive (D) and Sport (S).

[0041]The selection system 12 comprises a selector, in this example a rotary selector 17 graspable by the...

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PUM

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Abstract

The invention discloses a method of controlling a transmission (11) of a motor vehicle, in which a sensor (18) for generating a position indication of a selector (17) is calibrated such that the selector (17) is positioned The peak force feedback position produced by the peak and valley force feedback mechanism (24) connected to the selector (17) will always result in the selection of a driving mode of the transmission (11).

Description

technical field [0001] The present invention relates to a method of controlling a transmission of a motor vehicle, and more particularly to a method of controlling the operation of a multistable shift-by-wire selector control system of an automatic or semi-automatic vehicle transmission. Background technique [0002] It is known from eg GB-A-2420833 that a shift-by-wire selector has a plurality of stable positions, each operating a mode of the automatic transmission, namely: park, reverse, neutral, forward. The selector includes a sensing device for detecting the position of the selector and generating a selector signal to the transmission control unit, which sends control signals to the vehicle transmission and shift mechanism to keep the selector in its multiple Each position in the stable position. The shifter has a detent plate with notches that mate with mechanical detents of configurable force. [0003] While such a selector has proven to be effective, it has also be...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16H59/10F16H61/18F16H61/24
CPCY10T74/2014F16H61/24F16H59/105Y10T74/2003F16H59/08F16H61/12G05G5/05F16H2059/0221F16H2061/247
Inventor R·杰格尔P·斯塔里斯H·曼黛尔
Owner JAGUAR LAND ROVER LTD