Position sensor and position sensing system
A sensor and comparator technology, applied in transmission control, components with teeth, belts/chains/gears, etc., can solve problems such as vehicle failures and system failure to judge normally, and achieve the effect of enhancing reliability
Active Publication Date: 2017-01-11
TYCO ELECTRONICS (SHANGHAI) CO LTD
View PDF11 Cites 9 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Neutral and reverse gear position sensors generally do not have redundant design, which will lead to several problems: the client’s gearbox needs to open up two areas for the assembly of two types of sensors, and two magnets need to be reserved on the shift lever Installation location; since the system needs to collect the signals of two touch sensors at the same time to judge the gear position, if there is no redundant design, when any error occurs in the signal of any position sensor, the system cannot judge normally, resulting in the failure of the whole vehicle
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0042] Various embodiments of the invention will be described below with reference to the accompanying drawings, which form a part hereof. It should be understood that although directional terms such as "front", "rear", "upper", "lower", "left", "right", etc. are used herein to describe various exemplary structural parts of the invention and elements, but these terms are used herein for explanatory purposes only, based on the example orientations shown in the figures. Since the disclosed embodiments of the present invention may be arranged in different orientations, these directional terms are for illustration only and should not be viewed as limiting. Where possible, the same or similar reference numerals used in the present invention refer to the same components.
[0043] figure 1 It is a structural schematic diagram of the position sensor of the present invention.
[0044] Such as figure 1 As shown, a position sensor 100 is used to sense a neutral position and a reverse...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
A position sensor is used for sensing a neutral gear position and a reverse gear position of a transmission. A magnet is fixedly arranged on a shift lever of the transmission. The position sensor comprises two paths of neutral gear sensing lines and two paths of reverse gear sensing lines. Each of the neutral gear sensing lines is provided with an induction unit, the two induction units synchronously induce the movement of the magnet and generate two paths of signals, one path of the signal is a neutral gear signal, and the other path of the signal is a neutral gear position redundancy signal. Each path of the reverse gear sensing line is provided with an induction unit, the two induction units synchronously induce the movement of the magnet and generate two paths of signals, one path of the signal is a reverse gear position signal, and the other path of the signal is a reverse gear position redundancy signal. According to the position sensor and a position sensing system, the two paths of complementary signals are compared through comparers, judgment is conducted, state signals are generated, meanwhile the neutral position state signal, the neutral gear position redundancy signal, the reverse gear position state signal and the reverse gear position redundancy signal are received through a control circuit, the fault diagnosis of the position sensor is conducted, and the fault diagnosis purpose is achieved.
Description
technical field [0001] The invention relates to the field of position sensing, in particular to a gear position detection sensor of an automobile transmission. Background technique [0002] Position sensors have been widely used in various industrial fields, such as automotive control systems. In the start-stop system, it is necessary to judge the position of neutral gear and reverse gear to make the TCU determine whether the engine is turned off or running in the current state and whether it is in forward gear or reverse gear at the same time, so the relevant neutral gear position sensor and reverse gear position sensor are required. These sensors are installed on the outside of the gearbox housing, and the sensing magnet is installed on the shift lever. The magnet is driven by the rotation of the shift lever when entering gear and the linear movement when selecting gear, so that the sensor senses the gear position. [0003] In the prior art, the sensor setting mostly adop...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Applications(China)
IPC IPC(8): F16H63/42F16H61/12
CPCF16H61/12F16H63/42F16H2061/1216F16H2061/1224
Inventor 程达伟
Owner TYCO ELECTRONICS (SHANGHAI) CO LTD