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Method for assisting in starting a motor vehicle and corresponding device

A technology for motor vehicles and engines, applied in control devices, engine ignition, engine components, etc., can solve problems such as the progressive reduction of the clutch pedal, the driver's difficulty in starting smoothly, and the inability to accurately compensate the engine torque to avoid interruptions Effect

Active Publication Date: 2009-08-12
RENAULT SA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] [05] The disadvantage of this method of assisted starting is that it cannot accurately compensate the applied engine torque, resulting in a reduction in the progressiveness of the clutch pedal, making it difficult for the driver to start smoothly

Method used

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  • Method for assisting in starting a motor vehicle and corresponding device
  • Method for assisting in starting a motor vehicle and corresponding device
  • Method for assisting in starting a motor vehicle and corresponding device

Examples

Experimental program
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Embodiment Construction

[0027] [27] figure 1 The general structure of the starting aid according to the invention is described, indicated by the general reference numeral 1 . In this figure, the arrow F 1 to F 7 Corresponds to the stage of the start-up auxiliary method of the present invention. Said device 1 comprises: a determination module 2 representing the starting parameters of the motor vehicle; an estimation module 3 of the selected value point of the engine operating speed, which is connected with said determination module 2; and a calculation module 4, which is programmatically designed as A launch assist torque to be added to the engine torque is calculated to obtain satisfactory drivability, said calculation module being associated with said estimation module 3 . The device 1 is also equipped with: a management module 5 of the starting auxiliary torque; a control unit 6 of the motor vehicle engine, which is associated with the management module 5; and a monitoring unit 7 of the starting...

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Abstract

A method for assisting starting of a motor vehicle by application of engine torque on starting the vehicle. In the method parameters for detection of the starting of the motor vehicle are recorded. A set point for engine management is calculated from a parameter for the driver's command. A torque for assisting the start is determined from the engine management set point. The torque assistance is used on starting the vehicle from zero speed to a non-zero speed and the set point for the engine management is calculated as a function of different values for the moment of inertia of the engine. The change from one first value to a second value is carried out on there being a given difference between the engine management value and the measured value.

Description

technical field [0001] [01] The present invention relates to a method of assisting in starting a motor vehicle by increasing engine torque when the motor vehicle is started, and related apparatus. [0002] [02] In particular, the present invention relates to a method for assisting in starting a motor vehicle, which method can be used in various motor vehicles equipped with a mechanical gearbox and can control the engine operating speed when starting the motor vehicle, so as to obtain quite satisfactory drivability. By "vehicle start" is meant a transition from a state of vehicle speed of zero and transmission disengaged to a state of vehicle speed of non-zero and transmission engaged. Background technique [0003] [03] Currently, in order to improve the comfort when starting a motor vehicle from a standstill, it is sought to minimize interruptions in the continuity of the forward movement of the motor vehicle. This interruption may be caused by an increase in the overall we...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F02D37/02F02D41/06F02D41/04F02D41/10
CPCF02D2200/602F02D2250/21F02D41/062F02D2250/18Y02T10/46B60W2540/16F02D41/1497F02D41/10F02D2041/1432Y10T477/692B60W2540/10B60W10/06B60W30/18027F02P5/1506B60W10/02Y02T10/40F02D37/02F02D41/04F02D41/06
Inventor F·布托内A·皮诺P·雷伊
Owner RENAULT SA
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