Information collecting device of two-gear transmission of electric car

Abstract

The invention discloses an information collecting device of a two-gear transmission of an electric car. The information collecting device comprises speed signal magnetic steel (232), gear position magnetic steel (261) and a signal collecting circuit board (27). The speed signal magnetic steel (232) is connected with a gear shifting shaft (5). The gear position magnetic steel (261) is connected with a gear selecting gear (17). The signal collecting circuit board (27) comprises a speed Hall sensor (271), a neutral gear Hall sensor (272) and a high-low gear Hall sensor (273). The neutral gear Hall sensor (272) and the high-low gear Hall sensor (273) are opposite to the gear position magnetic steel (261), and the speed Hall sensor (271) is opposite to the speed signal magnetic steel (232). The signal collecting circuit board (27) collects speed signals through the speed signal magnetic steel (232), and collects gear position signals through the gear position magnetic steel (261). The information collecting device is precise in information collection and convenient to use.

Description

technical field [0001] An information collection device that can be used for a two-speed transmission of an electric vehicle belongs to the technical field of variable speed drive and transmission of electric vehicles. Background technique [0002] In order to make the motor work in the high-efficiency zone as much as possible, the application of electric vehicles equipped with transmissions is increasing. But the field of electric vehicles such as existing electric tricycle, electric vehicle, adopts hand-pulled gear shifting device more. This will cause several problems: [0003] 1. The existing hand-pull gear shifting device for electric vehicles has no synchronous action during the shifting process, which will cause problems such as tooth hitting, impact, jerk, noise, etc. during the shifting process, and may easily cause damage to the gear or gearbox. [0004] 2. In the existing hand-pull shifting device for electric vehicles, the shifting actuator is composed of pull ...

AI Technical Summary

Problems solved by technology

[0003] 1. The existing hand-pull shifting device for electric vehicles has no synchronous action during the shifting process, which will cause problems such as tooth hitting, impact, frustration, noise, etc. during the shifting process, and may easily cause damage to the gear or gearbox

[0004] 2. In the existing hand-pull gearshift device for electric vehicles, the gearshift actuator is composed of pull wires, springs and other mechanisms, and it is impossible to judge whether the gearshift is in place. Over time, it will lead to aging or loosening of purely mechanical mechanisms such as pull wires and springs. Causing disengagement or inability to shift gears during driving

[0005] 3. The existing hand-pull gear shifting device for electric vehicles requires the help of a strong spring to lock the gear. During the driving process, it is easy to fail to engage the gear, or miss the timing of shifting when going uphill.

[0006] 4. The existing hand-pull gear shifting device for electric vehicles does not have a clutch device, so power interruption or power connection cannot be achieved during the gear shifting process

Therefore, in the process of manual operation, more manual force is required, which will undoubtedly affect the handling performance and driving experience of the vehicle

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