Double clutch-based torque precontrol system and method

A dual-clutch, clutch technology, applied in clutches, components with teeth, transmission control and other directions, can solve the problems of reduced comfort, impact, acceleration of occupants in the car, etc., to achieve the effect of improving comfort

A dual-clutch, clutch technology, applied in clutches, components with teeth, transmission control and other directions, can solve the problems of reduced comfort, impact, acceleration of occupants in the car, etc., to achieve the effect of improving comfort

CN107420535AActive Publication Date: 2017-12-01ANHUI JIANGHUAI AUTOMOBILE GRP CORP LTD
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  • Double clutch-based torque precontrol system and method
  • Double clutch-based torque precontrol system and method

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Embodiment Construction

[0032] The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0033] Embodiments of the present invention: as figure 2 As shown, it includes a transmission control unit 1, a dual clutch 2, a speed change device 3 and a motor control unit 4; the dual clutch 2 is connected with the motor 5; the first clutch in the motor 5 is connected with the engine 6; the transmission control unit 1 is used to 5, the power of the motor 5 or the opening of the accelerator, whether the first clutch is working normally and whether the working state is not disengaged, whether the current hybrid vehicle is pure electric driving, determine whether to torque the target clutch in the dual clutch 2 Pre-control; if yes, then output the first control signal to reduce the working pressure of the target clutch 2 until the difference between the speed of the motor 5 and the speed of...

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Abstract

The invention discloses a double clutch-based torque precontrol system and method. The system comprises a transmission control unit, double clutches, a transmission and a motor control unit; the double clutches are connected with a motor; a first clutch in the motor is connected with an engine; the transmission control unit determines whether to carry out torque precontrol on a target clutch of the double clutches or not according to a rotational speed of the motor, the electric quantity of the motor or the opening degree of an accelerator and according to whether the first clutch normally works or not, whether a working state of the first clutch is non disengaging or not and whether a hybrid vehicle is in electric-only drive or not; and if yes, a first control signal is output to lower the working pressure of the target clutch until a difference between the rotational speed of the motor and the rotational speed of the transmission is kept in a preset range, a torque value of the target clutch is maintained, and a starting signal is sent to the motor control unit. By applying the embodiment of the invention, the comfort of the whole vehicle in the process of starting the engine by the motor is improved.

Description

technical field [0001] The invention relates to the technical field of clutch torque control, in particular to a torque pre-control system and method based on a dual-clutch automatic transmission. Background technique [0002] A hybrid vehicle (referred to as a hybrid vehicle), also known as a hybrid vehicle, refers to a vehicle equipped with two or more power sources: such as batteries, fuel cells, solar cells, and generator sets for internal combustion locomotives. At present, a hybrid vehicle generally refers to a vehicle with an internal combustion locomotive generator and a battery, that is, the vehicle contains equipment such as an electric motor and an electric motor, and the transmission device equipped with a hybrid can be a dual-clutch transmission. A typical wet dual clutch transmission transmission consists of two coaxially nested or parallel arranged clutches. It consists of two input shafts arranged coaxially and nested inside and outside, two output shafts ar...

Claims

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Application Information

Patent Timeline
01 Dec 2017
Publication
CN107420535A
IPC
F16H61/02; F16H61/04; F16D48/06
CPC
F16D48/06; F16D2500/1107; F16H61/0204; F16H61/04
Inventors
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