Device and method for monitoring tire pressure of electric vehicle
By using torque sensors to calculate tire pressure monitoring related parameters in electric vehicles, the problems of large calculation volume and high time consumption of traditional indirect tire pressure monitoring systems are solved, and more efficient and accurate tire pressure monitoring is achieved.
CN114537056BActive Publication Date: 2025-04-18HYUNDAI MOTOR CO LTD +1
Patent Information
- Application Number
- CN202110817619.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Priority Date
- 2020-11-25
- Filing Date
- 2021-07-20
- Publication Date
- 2025-04-18
- Estimated Expiration
- 2041-07-20
AI Technical Summary
Technical Problem
The traditional indirect tire pressure monitoring system requires regression analysis during the setting of reference pressure and low tire pressure warning, resulting in large amount of calculation and time consumption.
Method used
By setting the torque sensors of the front and rear wheel motors in an electric vehicle, the intercept value and cumulative average value of ΔFR are selectively calculated using the torque difference value ΔTq, and the intercept value of ΔLR and ΔDiag are calculated in combination with the wheel speed to realize tire pressure monitoring.
Benefits of technology
It reduces the need for regression analysis, reduces the calculation amount and time consumption, and improves the efficiency and accuracy of tire pressure monitoring.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure CN114537056B_ABST
Abstract
The present invention provides a device and method for monitoring tire pressure of an electric vehicle. A tire pressure monitoring device for an electric vehicle includes: a wheel speed sensor for sensing the speed of each wheel of the electric vehicle, and a controller for selectively calculating an intercept value of ΔFR and a cumulative average value of ΔFR based on a difference between the torque of a front wheel motor and the torque of a rear wheel motor, calculating an intercept value of ΔLR and an intercept value of ΔDiag based on the speed of each wheel, and monitoring the tire pressure of each wheel based on the calculated intercept value of ΔFR or the cumulative average value of ΔFR, the calculated intercept value of ΔLR, and the calculated intercept value of ΔDiag.
Need to check novelty before this filing date? Find Prior Art
Citation Information
Patent Citations
Apparatus and method for monitoring tire pressure using radius analysis
CN106347038A
Apparatus, method and program for alarming abnormality in tire air-pressure
EP1798078A2