A Model-Based Design Method for the Control System of Vehicle Shift Solenoid Valve
A technology of control system and design method, which is applied in the direction of general control system, control/regulation system, simulator, etc., and can solve problems such as long cycle, heavy calibration workload, and limited performance improvement
Active Publication Date: 2020-11-13
JILIN UNIV
View PDF11 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Due to the hysteresis of the hydraulic system itself, the hydraulic elastic modulus is affected by temperature changes, and the output saturation of the actuator is limited, the shift solenoid valve has strong nonlinearities such as dead zone, saturation, and hysteresis. Complex and diverse engineering clutch control system development has the problems of heavy calibration workload, long cycle and limited performance improvement
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0085] The technical solution of the present invention and its simulation test will be introduced in detail below in conjunction with the accompanying drawings.
[0086] Overall scheme of the present invention:
[0087] Mathematical modeling of the on-board shift solenoid valve: through the structure and working principle of the shift solenoid valve, the system dynamic equation that can be used for controller design is given.
[0088] The control system design of the on-board shift solenoid valve: based on the differential flat theory, select a reasonable control variable and controlled variable. Derivation of feedforward and feedback control laws. Aiming at the experimental problem that the input information in the control system cannot be measured, a nonlinear estimator is designed to estimate the displacement and velocity of the solenoid valve core.
[0089] Hardware-in-the-loop experimental verification: The control system hardware-in-the-loop physical simulation experim...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses a model-based control system design method for a vehicle-mounted gear shifting electromagnetic valve, which comprises the steps of building a reasonable mathematical model of the vehicle-mounted gear shifting electromagnetic valve according to a movement mechanism of the vehicle-mounted gear shifting electromagnetic valve; performing normalization processing on the built mathematical model of the vehicle-mounted gear shifting electromagnetic valve, and obtaining a vehicle-mounted gear shifting electromagnetic valve control system dynamics equation; designing a nonlinearcontroller based on a differential flatness theory according to the vehicle-mounted gear shifting electromagnetic valve control system dynamics equation, selecting control variables and controlled variables, and deducing a feedforward control law and a feedback control law of the nonlinear controller; and designing a displacement and speed estimator based on the deduced control laws, and estimating the displacement and speed of a valve core of the vehicle-mounted electromagnetic valve.
Description
technical field [0001] The invention provides a model-based control system design method and a system hardware-in-the-loop experiment test scheme for an automatic shifting vehicle equipped with a wet clutch for a shift solenoid valve of the clutch, and belongs to the field of development of automobile electronic control systems. Background technique [0002] In order to improve the smoothness of shifting, it is necessary to precisely control the disengagement / combination of the automatic transmission clutch, especially for dual-clutch automatic transmissions (AT\DCT), in order to avoid power interference or interruption during the shifting process, during the shifting process The coordinated control of the two clutches is very critical. For the shifting process using hydraulic actuators, the coupling / disengagement of the clutch is realized by adjusting the pressure of the solenoid valve. Due to the characteristics of hysteresis in the hydraulic system itself, the hydraulic ...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): G05B17/02
CPCG05B17/02
Inventor 刘奇芳董世营姜子蛟陈虹
Owner JILIN UNIV