Vehicle manual gearing transmission neutral switch

Abstract

The invention provides a vehicle manual gearing neutral switch, the assembly of which comprises a gear shifter of a gear box, a cylinder bracket, a cylinder, a Hall element bracket, a Hall element, a bolt and a fixed block, wherein the cylinder is embedded on the cylinder bracket through interference fit; the cylinder bracket is arranged on the gear shifter of the gear box by the cooperation of the fixed block and the bolt, so that the cylinder does synchronized motion along with the gear shifter; the Hall element is arranged and fixed on the Hall element bracket through an encapsulated shell; the Hall element bracket and the gear shifter are fixed on the gear box through a shared bolt; the Hall element is arranged in parallel with the cylinder and aligned with the neutral position; and the Hall element is connected with a connector through wiring harness. When the Hall element is positioned in the magnetic field formed by the cylinder and is electrified in the direction perpendicular to the magnetic field, Hall potential difference is output in the direction perpendicular to the current and the magnetic filed on the Hall element, and when the current passing the Hall element is constant, then the size of the magnetic field is changed to change the potential difference.

Description

technical field [0001] The invention belongs to the technical field of gear position indication of a motor vehicle gearbox, in particular to a neutral switch of a manual gearbox for a vehicle. Background technique [0002] As countries around the world pay more and more attention to energy conservation and environmental protection issues, new energy vehicle technology represented by hybrids has attracted more and more attention, and the neutral switch is indispensable for manual transmission (MT) vehicle hybrids. The signal input device can be used as one of the conditions for judging the driver's driving intention by collecting the signal: when judging the parking state, the neutral switch should output a neutral signal, and when judging that the vehicle is started, the neutral switch should Output in gear signal. At the same time, the neutral switch is also increasingly used in the calibration technology of engine control. By collecting the neutral signal, the driving per...

AI Technical Summary

Problems solved by technology

At present, the neutral gear switch technology widely used in existing motor vehicles is mainly through modifying the internal structure of the existing manual gearbox and the gearbox housing, through the cooperation with the shift finger, and combined with the elastic mechanism to push the metal shrapnel finger to move. The main defect of this structure is that the internal structure of the gearbox is changed too much, which has caused great obstacles to the application and application of the neutral switch in various forms of manual gearboxes; in addition, due to the use of The contact state judging structure, the life of the switch is also short, which will cause the problem of inconvenient maintenance

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