Vehicle power assembly control method and system

A vehicle power and control method technology, which is applied in the vehicle powertrain control system and the field of vehicle powertrain control, can solve problems such as discontinuous changes in vehicle power, and achieve the effect of improving shift quality

Active Publication Date: 2017-06-06
GUANGZHOU AUTOMOBILE GROUP CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Based on this, the purpose of the embodiments of the present invention is to provide a vehicle powertrain control method and a vehicle powertrain control system to solve the problem of discontinuous changes in vehicle power

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  • Vehicle power assembly control method and system
  • Vehicle power assembly control method and system
  • Vehicle power assembly control method and system

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Embodiment Construction

[0039] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, and do not limit the protection scope of the present invention.

[0040] In the solutions of the embodiments of the present invention, the control of vehicle dynamics and shift quality is considered from the driver's point of view. Whether it is a single power source or multiple power sources, for the driver, it is only necessary to satisfy the same throttle corresponding to the same driving power of the wheels. At the same time, for the mechanical stepped transmission, considering the consistency of the driving power before and after the shift, it is only necessary to control and coordinate the conversion of the driving power correspo...

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Abstract

Disclosed are a vehicle power assembly control method and a vehicle power assembly control system. The vehicle power assembly control method includes steps: acquiring a current accelerator opening degree, current vehicle speed, a current gear ratio, a transmission and rotation inertia factor and a current gear position of a vehicle; confirming driving power according to the current accelerator opening degree and the current vehicle speed; confirming driving torque according to the current vehicle speed, the current gear ratio, the transmission and rotation inertia factor, the current accelerator opening degree, the current gear position and the driving power; confirming TCU (terminal control unit) request torque according to the driving power and the driving torque; performing vehicle power control according to the driving torque, and controlling a gearbox according to the TCU request torque. The vehicle power assembly control method confirms the torque of the vehicle based on the driving power, and thereby solves the problem that vehicle power is discontinuous, caused by step gear shifting before and after shifting gears, and improves shift quality of the vehicle.

Description

technical field [0001] The invention relates to the field of vehicle control, in particular to a vehicle power assembly control method and a vehicle power assembly control system. Background technique [0002] There are currently two ways to integrate the vehicle powertrain: one is the single power source control structure of the engine and transmission, and its control structure is as follows: figure 1 As shown, the other is a hybrid control structure integrating the engine, transmission, electric motor and ISG (Automotive Starter Generator). Taking two-wheel drive and four-wheel drive as examples, the control structures are as follows: figure 2 , image 3 shown. [0003] combine Figure 1 to Figure 3 It can be seen that the current common vehicle powertrain structure control is based on torque for power control, and the driving torque is output from the perspective of the power source (engine or the combination of the engine and the motor). For the control of a single ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60W10/06B60W10/08B60W10/10B60W30/18B60W20/10
CPCB60W10/06B60W10/08B60W10/10B60W20/10B60W30/18B60W2510/0604B60W2510/1005B60W2520/10B60W2540/16B60W2710/0666B60W2710/083B60W2710/105B60W2720/30Y02T10/60Y02T10/62
Inventor 莫崇相吴坚
Owner GUANGZHOU AUTOMOBILE GROUP CO LTD
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