Auxiliary control method for starting of manual shift gear vehicle

A manual transmission and clutch control technology, applied in engine control, machine/engine, mechanical equipment, etc., can solve problems such as flameout, slow torque increase, and prone to flameout

Active Publication Date: 2014-03-12
CHONGQING CHANGAN AUTOMOBILE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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 externa

Method used

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  • Auxiliary control method for starting of manual shift gear vehicle
  • Auxiliary control method for starting of manual shift gear vehicle
  • Auxiliary control method for starting of manual shift gear vehicle

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Embodiment Construction

[0023] In order to better understand the present invention, the solution will be described in detail below through specific embodiments in conjunction with the accompanying drawings.

[0024] The elements involved in the present invention include ECU, clutch release bearing sensor, gear position sensor, vehicle speed sensor. The three sensors are respectively connected to the ECU, and the sensor signal value during the starting process is used as the relevant quantity for the ECU to control the torque and throttle.

[0025] see Image 6 , the start assist control method of the manual transmission vehicle of the present invention, comprises the following steps:

[0026] 1. Prepare to start, start the engine, and disengage the clutch completely.

[0027] Torque at speed remains the same. The clutch state is disengaged, and the value of the clutch sensor is 100%, such as figure 2 Shown at point d; the gear position is not in gear, that is, neutral, as shown at point a. The ...

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PUM

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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...

Claims

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Application Information

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IPC IPC(8): F02D11/02
Inventor 田云许兵姜凤翔韩涌波
Owner CHONGQING CHANGAN AUTOMOBILE CO LTD
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