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Control system and method for restraining torsional vibration of vehicle through single mass flywheel

A single-mass, flywheel technology, applied in the direction of flywheel, rotation vibration suppression, spring/shock absorber design characteristics, etc., can solve the problems of unsatisfactory vibration reduction effect, difficult to control the torsional vibration of the transmission system, etc., and achieve NVH improvement performance, reducing vehicle manufacturing costs, and suppressing the effect of torsional vibration

Active Publication Date: 2021-10-08
CHONGQING CHANGAN AUTOMOBILE CO LTD
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  • Application Information

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Problems solved by technology

But the torsional vibration of its transmission system is not easy to control, and the vibration reduction effect is not ideal

Method used

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  • Control system and method for restraining torsional vibration of vehicle through single mass flywheel
  • Control system and method for restraining torsional vibration of vehicle through single mass flywheel
  • Control system and method for restraining torsional vibration of vehicle through single mass flywheel

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Embodiment Construction

[0021]The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0022] figure 1 Shown is a schematic diagram of the hybrid vehicle transmission system and the motor active control system. The P2 coaxial drive module is installed between the engine and transmission and integrates the electric motor and single-mass flywheel.

[0023] The sensor measures the single-mass flywheel output torque in real time. The single mass flywheel output torque is used as the input signal of the motor torque active controller, and the motor torque active controller extracts the single mass flywheel output torque alternating component from the input single mass flywheel output torque. First, the storage unit of the adaptive filter is initialized, including the output signal vector of the adaptive filter, the estimation error vector of the adaptive filter and the tap weight coefficient matrix of the adaptive filter. According ...

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Abstract

The invention provides a control system and method for torsional vibration of a hybrid drive vehicle through a single mass flywheel, and relates to the torque control technology of an automobile transmission system. A P2 coaxial driving module is mounted between an engine and a transmission; the system comprises a motor and the single mass flywheel; an adaptive filter output signal is calculated by using an adaptive filter tap weight coefficient vector, the adaptive filter output signal is taken as a motor compensation torque, the motor compensation torque and a motor expected torque are taken as a motor instruction torque; and the output torque of the single mass flywheel and the output torque of the motor serve as the input torque of an input shaft of the transmission together. The motor compensation torque in the transmission input torque is used for eliminating the single mass flywheel output torque alternating component, and then the vibration level of the transmission system is weakened.

Description

technical field [0001] The invention belongs to the torque control technology of an automobile transmission system, and in particular relates to a method for dynamically adaptively and actively controlling the torsional vibration of a hybrid vehicle transmission system equipped with a single-mass flywheel by using a P2 motor. Background technique [0002] Gasoline-electric hybrid vehicles are in a booming stage. The transmission system of a hybrid electric vehicle involves a multi-field and multi-dimensional dynamic process of mechanics, electricity, force, and magnetism. Compared with fuel vehicles, these multi-source disturbances make the vibration of the transmission system of hybrid vehicles more complicated. In addition, the frequent start and stop of the hybrid vehicle engine, the switching of the transmission drive mode, and the power coupling between the engine and the motor, etc., are likely to cause transient impact and high-frequency vibration noise. The high-fr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16F15/30F16F15/14
CPCF16F15/30F16F15/14F16F2230/18Y02T10/62
Inventor 李凤琴李捷邵俊龙杨少波曾庆强饶思梁杨金才柴伟伟
Owner CHONGQING CHANGAN AUTOMOBILE CO LTD
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