Power supply detection system and method of vehicle-mounted motor controller
A technology for motor controller and power supply detection, applied in power management, vehicle components, electric vehicles, etc., can solve the problems of different low-voltage power supply current consumption, inability to work normally in the chip state, etc., saving resource costs and high detection accuracy Effect
Pending Publication Date: 2022-07-08
LEADRIVE TECH (SHANGHAI) CO LTD
View PDF0 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Since the current consumption of the low-voltage power supply is different under different working conditions of the motor controller, it is not possible to simply detect the input power supply voltage to determine whether the state of the chip on the electronic control board is working normally.
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
[0041] The advantages of the present invention are further described below with reference to the accompanying drawings and specific embodiments.
[0042] Exemplary embodiments will be described in detail herein, examples of which are illustrated in the accompanying drawings. Where the following description refers to the drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the illustrative examples below are not intended to represent all implementations consistent with this disclosure. Rather, they are merely examples of apparatus and methods consistent with some aspects of the present disclosure as recited in the appended claims.
[0043] The terminology used in the present disclosure is for the purpose of describing particular embodiments only and is not intended to limit the present disclosure. As used in this disclosure and the appended claims, the singular forms "a," "the," an...
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 provides a power supply detection system and method of a vehicle-mounted motor controller. The system comprises an input power supply; the system comprises a power management chip SBC, an onboard non-isolated power supply unit and an onboard isolated power supply unit. The power management chip SBC is electrically connected to the CPU and onboard electric equipment; the onboard non-isolated power supply unit is electrically connected to onboard electric equipment and the driving chip; the onboard isolation power supply unit is electrically connected to the driving chip; when the voltage input by the power supply is lower than the voltage threshold value and is recovered, the CPU reads configuration information and fault information of the driving chip; when the configuration information is lost, the power supply of the onboard non-isolated power supply unit is abnormal; when the configuration information exists and the fault information records a communication fault, the power supply of the onboard isolation power supply unit is abnormal; when the configuration information is lost and the fault information records the communication fault, the power supply of the onboard non-isolated power supply unit is abnormal, and the power supply of the onboard isolated power supply unit is abnormal, the position of the undervoltage fault can be determined under the condition that hardware resources are limited.
Description
technical field [0001] The invention relates to the field of motor control, in particular to a power detection system and method of a vehicle-mounted motor controller. Background technique [0002] With the rapid development of new energy vehicles, the management of upstream and downstream equipment of new energy vehicles has developed rapidly, and the fault judgment of the on-board motor controller is also a part of it. [0003] During the driving process of the new energy vehicle, when the voltage of the low-voltage power supply (low-voltage battery / DCDC output) of the vehicle is low, and the power supply equipment of the vehicle needs to draw a large low-voltage supply current suddenly, the low-voltage supply voltage will generate a lower voltage than normal. Sag of operating voltage. This will cause the low-voltage power supply system of the motor controller connected to the power supply to work abnormally, the CPU is not completely powered down, but other chips are pow...
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): B60L3/00
CPCB60L3/0084Y02T10/72
Inventor 韩娜孙利干童梁张曾辉王海鑫
Owner LEADRIVE TECH (SHANGHAI) CO LTD