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Gear selector system

A gear selector, gear technology, applied in the direction of transportation and packaging, mechanical equipment, transmission control, etc., can solve the problems of redundancy and expensive

Active Publication Date: 2012-06-20
GM GLOBAL TECH OPERATIONS LLC +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this method is redundant as multiple control modules are required to process the signals from the Hall sensors
Also, this method can be expensive as there are usually many hall sensors used to determine the position of the gear lever

Method used

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Examples

Experimental program
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Embodiment Construction

[0059] The following description is merely exemplary in nature, and is in no way intended to limit the invention, application, or use.

[0060] refer to figure 1 , an exemplary block diagram of a vehicle is shown generally at 10 . The vehicle 10 includes an engine 12 that drives a transmission 14 through a torque converter or other torque-transmitting device 16 . The transmission 14 drives an output shaft 22 that drives the driveline of the vehicle 10 based on engine torque. In the illustrated embodiment, the speed and torque relationship between the engine 12 and the driveline 24 is controlled by hydraulically actuated torque-transmitting devices of the transmission 14 such as clutches C1 , C2 , C3 , C4 and C5 . Clutches C1-C5 are coupled to hydraulic pressure source 28 through a control valve 30 that regulates clutch pressure. although figure 1 Five clutches are illustrated including transmission 14 , but those skilled in the art will appreciate that any number of clutch...

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PUM

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Abstract

A gear selector assembly for selecting a gear position of a transmission includes an internal mode switch having detent lever, a plurality of magnetic field sensors, a control module, a first power supply and a second power supply. The detent lever has a plurality of detents and a magnetized track, where the magnetized track includes a plurality of magnetized elements that are indicative a particular gear selector position. The magnetic field sensors are associated with each of the magnetized elements for sensing changes in a magnetic field of the magnetized track. The control module is in communication with each of the field sensors. Each of the field sensors sends an output current to the control module and the value of the output current is variable. The value of the output current is indicative of at least one of the following: the direction of the magnetic field from the corresponding magnetic track, a short circuit, and an open circuit.

Description

technical field [0001] The present invention relates to a range selector assembly, and more particularly to a range selector assembly having an internal mode switch including a plurality of magnetic field sensors corresponding to a particular range selector position. Background technique [0002] The statements in this section merely provide background information related to the present disclosure and may or may not constitute prior art. [0003] The gear select assembly includes a gear lever that is actuated to select a desired gear selector position such as Park, Reverse, Neutral or Drive. In a drive-by-wire system, the position of the gear lever is converted into an electrical signal, and this electrical signal is sent to the transmission through an internal mode switch. The internal mode switch module includes a detent lever having a plurality of detents, each detent corresponding to a gear selector position. A magnetic field sensor such as a Hall Effect sensor may be ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H61/00F16H63/40
CPCF16H2059/047F16H2061/243F16H61/00F16H63/40B60K20/02F16H59/105Y10T74/20018Y10T74/2003Y10T74/2011
Inventor P.E.吴R.E.罗比内特M.A.维尔纳基亚J.P.科斯基
Owner GM GLOBAL TECH OPERATIONS LLC
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