Electronic shifting system of vehicle mechanical gearbox

Abstract

The invention discloses an electronic shifting system of a vehicle mechanical gearbox. The electronic shifting system of the vehicle mechanical gearbox comprises a controller, a pneumatic-electric united pump, an electric pushing rod pump and an electronic shifting handle. The pneumatic-electric united pump and the electric pushing rod pump are controlled by the controller. The pneumatic-electric united pump is connected with a clutch. The electric pushing rod pump is connected with a gear selecting and shifting mechanism. According to the electronic shifting system of the vehicle mechanical gearbox, a manual operation rod on a manual gearbox is changed to an electric pushing rod so that electric shifting operation can be achieved; a clutch pedal mechanism is changed to the pneumatic-electric united pump so that automatic clutch operation can be achieved; the electronic shifting handle (or a knob) is additionally arranged, so that individualized shifting operation is achieved and adaptability is enhanced; the controller is additionally arranged, so that smooth shifting and interactive processing of relevant information are achieved.

Description

technical field [0001] The invention relates to the field of auto parts, in particular to an electronic shifting system of a mechanical gearbox for a vehicle, that is, the gearshift operation of the mechanical gearbox is realized through an electronic control system. Background technique [0002] At present, urban vehicles, such as buses and taxis, mostly use mechanical gearboxes. The installation and manufacturing costs of mechanical gearboxes are low and the fuel consumption is low. A series of operations such as manually engaging the clutch can complete the gear shift. [0003] Urban traffic conditions are complex, taxis and buses shift gears very frequently, and drivers are labor-intensive. At present, although the AT automatic transmission technology is mature, it is very expensive and has high fuel consumption, which is about 20% higher than that of a mechanical transmission, and the maintenance cost is high. Therefore, AT automatic transmissions are more common in m...

AI Technical Summary

Problems solved by technology

The transmission torque of CVT automatic transmission is small, which cannot meet the power demand of taxis and buses

The acquisition and calculation of AMT gearbox working condition signals are complicated, and it has poor adaptability to complex working conditions of taxis and buses, which may easily cause failures such as vehicle stalling

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