公开(公告)号：US20210276548A1

公开(公告)日：2021-09-09

申请号：US16626886

申请日：2019-02-20

Applicant: JIANGSU UNIVERSITY

Inventor： Yingfeng CAI ,  Yong ZANG ,  Hai WANG ,  Xiaoqiang SUN ,  Long CHEN ,  Jun LIANG ,  Yicheng LI ,  Dehua SHI ,  Bin TANG

IPC: B60W30/12 ,  B60W30/18 ,  B60W50/02

Abstract: This invention is an extension adaptive lane keeping control method with variable vehicle speed, which is composed of the following steps: S1, establishing a three-degree-of-freedom dynamic model and a preview deviation expression; S2, performing the lane line fitting equation; S3, designing the upper layer ISTE extension controller; including: S3.1, establishing the control index (ISTE) extension sets; S3.2, dividing the control index (ISTE) domain boundaries; S3.3, calculating the control index (ISTE) association function; S3.4, establishing the upper layer extension controller decision; S4, designing the lower layer speed extension controller; S5, designing the lower layer deviation tracking extension controller; including: S5.1, extracting the lower layer deviation tracking extension feature quantity and dividing domain boundaries; S5.2, designing the lower layer extension controller correlation function; S5.3, performing the lower layer measurement mode identification; S5.4, When the front wheel angle of lower layer controller outputs is calculated according to the measurement mode. This invention realizes the adaptive variation of the control coefficient of the extension controller and the boundary range of the constraint domain according to the tracking deviation precision, the speed variation, and the expert knowledge base.

公开(公告)号：US20200156699A1

公开(公告)日：2020-05-21

申请号：US16627980

申请日：2018-05-23

Applicant: JIANGSU UNIVERSITY

Inventor： Bin TANG ,  Yingqiu HUANG ,  Haobin JIANG ,  Di ZHANG ,  Chaochun YUAN ,  Yingfeng CAI ,  Guoqing GENG ,  Chaofeng PAN ,  Shidian MA ,  Dong CAO ,  Chenhui YIN

IPC: B62D5/04 ,  B62D15/02 ,  G06F30/15 ,  G06F30/20 ,  H02J7/00 ,  B62D3/02 ,  H02J7/34 ,  H02M3/158 ,  G06F119/06

Abstract: An energy dynamic control method for the EPS with hybrid power supply and an energy dynamic control system. Control system collects real-time current of vehicle electric appliances except the steering motor and the super-capacitor and calculates target current of the steering motor according to real-time steering torque and vehicle speed, and determines state of the super-capacitor by comparing rated current of vehicle power supply and sum of the current of vehicle electric appliances and target current of the steering motor. When super-capacitor is in the charging state, charging current is dynamically regulated to make vehicle power supply work in optimal working range, and maximum charging current is limited based on SOC of the super-capacitor. When super-capacitor is in discharging state, discharging current is dynamically regulated to make vehicle power supply work in optimal working range, and maximum discharging current is limited based on SOC of super-capacitor.