Method, ECU and system for correcting driving signal of electromagnetic valve and vehicle
A technology of solenoid valve driving and driving signal, applied in the field of vehicles, can solve the problems of heat generation, difficulty in obtaining solenoid valve temperature, abnormal solenoid valve driving, etc.
Pending Publication Date: 2022-06-24
WEICHAI POWER CO LTD +1
View PDF0 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0003] However, when the solenoid valve is driven, it will generate heat, and it is difficult to obtain the temperature of the solenoid valve itself through an external sensor.
When the temperature of the solenoid valve changes drastically, if the drive signal is not changed in time, it will cause abnormal drive of the solenoid valve
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
[0058] In order to make those skilled in the art better understand the solutions of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only It is a part of the embodiments of the present application, but not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.
[0059] In order to facilitate the understanding of those skilled in the art, the following describes the system for correcting the driving signal of the solenoid valve provided by the embodiments of the present application with reference to the accompanying drawings.
[0060] like figure 1 As shown, this figure is a s...
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 method, an ECU, a system and a vehicle for correcting a driving signal of an electromagnetic valve. The method comprises the steps that the ECU collects a first driving voltage at the driving starting moment of the electromagnetic valve, a second driving voltage at the driving ending moment and a third driving voltage at the driving middle moment close to the driving starting moment; the ECU calculates the resistance value of the first resistor and the inductance value of the first inductor based on the driving starting moment, the driving ending moment, the driving middle moment, the first driving voltage, the second driving voltage, the third driving voltage and the resistance value of the first line resistor; the ECU obtains a first temperature, corresponding to the resistance value of the first resistor and the inductance value of the first inductor, of the electromagnetic valve through a preset corresponding relation according to the resistance value of the first resistor and the inductance value of the first inductor; the ECU corrects the solenoid valve drive signal according to the first temperature of the solenoid valve. According to the method, the temperature, determined based on the resistance value of the first resistor, the inductance value of the first inductor and the preset corresponding relation, of the electromagnetic valve is more accurate, and the driving signal is accurately corrected.
Description
technical field [0001] The present invention relates to the technical field of vehicles, and in particular, to a method, ECU, system and vehicle for detecting battery failure. Background technique [0002] When the solenoid valve without current feedback is driven, the corresponding driving signal (such as driving duty cycle) is generally obtained by looking up the table according to the battery voltage and the temperature of the solenoid valve. [0003] However, when the solenoid valve is driven, it will generate heat, and it is difficult to obtain the temperature of the solenoid valve itself through an external sensor. When the temperature of the solenoid valve changes drastically, if the driving signal is not changed in time, the solenoid valve will be abnormally driven. SUMMARY OF THE INVENTION [0004] The purpose of the present application is to provide a method, ECU, system and vehicle for detecting battery failure, which can detect the battery failure after the en...
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 Applications(China)
IPC IPC(8): F16K31/06F16K37/00G01R31/389G01R31/388G01R31/392G01R31/327
CPCF16K31/0675F16K37/0041G01R31/389G01R31/388G01R31/392G01R31/3277
Inventor 高鑫徐永新李国栋王敬
Owner WEICHAI POWER CO LTD