Auxiliary control method for starting of manual shift gear vehicle

Abstract

The invention provides a control method for a starting gear clutch of a manual shift gear vehicle. According to the method, an ECU detects a gear status signal of a gear sensor and a clutch displacement signal of a clutch travel sensor to identify starting intention of a driver, before the clutch is connected, the opening degree of a throttle of an engine and the rotation speed of the engine are increased, torque is fast improved in the clutch loosening process, and thus starting stability is guaranteed, and starting flameout is prevented. Compared with the prior art, because a control logic system is improved and starting control logic is added, the rotation speed of the engine can be increased in advance according to the signal value of the gear sensor, and thus flameout is less likely to happen in the starting process. After the gear is shifted, the rotation speed of the engine is increased, error judgment of the starting intention of the driver is avoided, and thus the fuel consumption of the whole vehicle will not increase.

Description

technical field [0001] The invention belongs to the field of gear clutch control of an automobile transmission system, and relates to a starting control method for a manual transmission vehicle. Background technique [0002] Starting is an important indicator of a car's dynamic performance. How to start quickly, smoothly and powerfully is one of the key factors to measure whether a car's dynamic performance is good or not. The starting condition of a manual transmission vehicle varies with the load, road conditions, and driver proficiency, that is, the clutch control is a control system with multiple control objectives and multiple influencing factors. For small and medium displacement cars with manual transmission, it is necessary to ensure the smoothness of the starting process, prevent excessive impact, ensure the stable operation of the engine, and ensure the quickness of the starting process. Therefore, it is undoubtedly a simple and feasible method to increase the sta...

AI Technical Summary

Problems solved by technology

When the clutch is loosened too quickly, the speed drops too fast, and it is easy to stall the engine

Moreover, in the traditional control method, because the torque increases with the change of the external load, there is no corresponding torque control logic, the torque increase is slow, and the driver's intention cannot be recognized in advance. If the clutch is loosened too quickly, it will easily stall.

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