公开(公告)号：US20180237059A1

公开(公告)日：2018-08-23

申请号：US15753122

申请日：2016-08-17

Applicant: BYD COMPANY LIMITED

Inventor： Yubo LIAN ,  Heping LING ,  Fanliang MENG ,  Ting WEN ,  Yanfei XIONG

IPC: B62D5/04 ,  B62D9/00 ,  B62D15/02 ,  B60T8/1755

CPC classification number: B62D5/0484 ,  B60T8/17552 ,  B62D5/0418 ,  B62D5/0463 ,  B62D5/0481 ,  B62D9/005 ,  B62D11/003 ,  B62D15/025 ,  Y02T10/7258

Abstract: An auxiliary steering system (100) and method for an electric vehicle and the electric vehicle are disclosed. The system includes a detection component (6A) including a first electric motor (4) and a detection controller (6) configured to determine whether a steering assist device (2) is normal, to continue to determine whether the steering assist device (2) is normal if yes, and to control a drive rack (5A) of the first electric motor (4) to drive wheels (17) of the electric vehicle to return and to output a steering failure signal, a steering wheel torque signal and a direction signal if no; an electric motor controller (8); a second electric motor (14); and a vehicle controller (7). The electric motor controller (8) is further configured to control the second electric motor (14) to increase a drive torque for an outer front wheel (17), to brake an inner rear wheel (17), and to stop driving an inner front wheel (17) and an outer rear wheel (17).

公开(公告)号：US20180237001A1

公开(公告)日：2018-08-23

申请号：US15753105

申请日：2016-08-18

Applicant: BYD COMPANY LIMITED

Inventor： Yubo LIAN ,  Heping LING ,  Ning WANG ,  Yanfei XIONG ,  Ting WEN

IPC: B60W30/02 ,  B60K7/00 ,  B60W10/08 ,  B60W10/184

CPC classification number: B60W30/02 ,  B60K7/0007 ,  B60K17/043 ,  B60K17/356 ,  B60K2007/0092 ,  B60L3/0076 ,  B60L3/0092 ,  B60L3/108 ,  B60L7/10 ,  B60L7/18 ,  B60L11/18 ,  B60L2220/42 ,  B60L2220/46 ,  B60L2240/16 ,  B60L2240/18 ,  B60L2240/22 ,  B60L2240/24 ,  B60L2260/28 ,  B60W10/08 ,  B60W10/184 ,  B60W2510/20 ,  B60W2520/105 ,  B60W2520/125 ,  B60W2520/14 ,  B60W2520/26 ,  B60W2520/28 ,  B60W2530/20 ,  B60W2540/18 ,  B60W2710/083 ,  B60W2720/14 ,  B60Y2200/91

Abstract: A vehicle stability control system includes a signal collection sensor and a vehicle controller (10). The signal collection sensor is configured to collect a vehicle condition information parameter, and the vehicle controller (10) is configured to calculate a control yaw moment according to the vehicle condition information parameter. The control yaw moment is used to cancel a difference between an estimated yaw moment and an actual yaw moment. The vehicle controller (10) is further configured to determine according to the vehicle condition information parameter whether the vehicle (100) is in a stable region or a non-stable region in the case of tire blow-out, and allocate the control yaw moment to four wheels (101) according to a vehicle stability condition, thus implementing vehicle stability control. A vehicle stability control method and a vehicle (100) with the vehicle stability control system are also disclosed.