公开(公告)号：WO2016078552A1

公开(公告)日：2016-05-26

申请号：PCT/CN2015/094606

申请日：2015-11-13

Applicant: BYD COMPANY LIMITED

Inventor： XU, Jinze ,  WU, Xingchi ,  LUO, Wengang ,  ZHANG, Chao ,  WANG, Hongjun ,  LUAN, Zhenpai

IPC: B62D5/04 ,  B60R16/03 ,  B62D6/00

CPC classification number: B62D5/0481 ,  B60L1/00 ,  B60L2210/12 ,  B60L2210/14 ,  B60R16/03 ,  B60Y2200/91 ,  B60Y2400/112 ,  B62D5/046 ,  H02P4/00 ,  Y02T10/7258

Abstract: A steering power system for an electric vehicle and a method for controlling same are provided. The steering power system includes: a steering motor (M); a steering motor controller (10), configured to control the steering motor (M); a high voltage power battery (20), configured to output a first voltage; a low voltage storage battery (30), configured to output a second voltage; a buck DC-DC converter (40), configured to convert the first voltage into the second voltage for being supplied to the low voltage storage battery (30) when a high voltage system (70) works; and a boost DC-DC converter (50), configured to convert the second voltage into the first voltage. When the high voltage system (70) has an abnormal power failure, the boost DC-DC converter (50) converts the second voltage outputted from the low voltage storage battery into the first voltage for being supplied to the steering motor controller (10). The steering power system improves driving safety of the electric vehicle.

Abstract translation: 提供了一种用于电动车辆的转向动力系统及其控制方法。 转向动力系统包括：转向马达（M）; 转向马达控制器（10），其构造成控制所述转向马达（M）; 高压电力电池（20），被配置为输出第一电压; 低压蓄电池（30），被配置为输出第二电压; 降压DC-DC转换器（40），被配置为当高压系统（70）工作时将第一电压转换成供给低电压蓄电池（30）的第二电压; 以及升压DC-DC转换器（50），被配置为将所述第二电压转换成所述第一电压。 当高压系统（70）发生异常停电时，升压DC-DC转换器（50）将从低压蓄电池输出的第二电压转换为第一电压供给转向马达控制器（10）。 转向动力系统提高了电动汽车的驾驶安全性。

公开(公告)号：EP3206936A1

公开(公告)日：2017-08-23

申请号：EP15860825.7

申请日：2015-11-13

Applicant: BYD Company Limited

Inventor： XU, Jinze ,  WU, Xingchi ,  LUO, Wengang ,  ZHANG, Chao ,  WANG, Hongjun ,  LUAN, Zhenpai

IPC: B62D5/04 ,  B60R16/03 ,  B62D6/00

CPC classification number: B62D5/0481 ,  B60L1/00 ,  B60L1/003 ,  B60L2210/12 ,  B60L2210/14 ,  B60R16/03 ,  B60Y2200/91 ,  B60Y2400/112 ,  B62D5/046 ,  H02P4/00 ,  Y02T10/7225 ,  Y02T10/7233 ,  Y02T10/7258

Abstract: A steering power system for an electric vehicle and a method for controlling same are provided. The steering power system includes: a steering motor; a steering motor controller, configured to control the steering motor; a high voltage power battery, configured to output a first voltage; a low voltage storage battery, configured to output a second voltage; a buck DC-DC converter, configured to convert the first voltage into the second voltage for being supplied to the low voltage storage battery when a high voltage system works; and a boost DC-DC converter, configured to convert the second voltage into the first voltage. When the high voltage system has an abnormal power failure, the boost DC-DC converter converts the second voltage outputted from the low voltage storage battery into the first voltage for being supplied to the steering motor controller.

Abstract translation: 提供了一种用于电动车辆的转向动力系统及其控制方法。 该转向动力系统包括：转向马达; 转向马达控制器，用于控制转向马达; 高压动力电池，用于输出第一电压; 低电压蓄电池，被配置为输出第二电压; 降压型DC-DC转换器，用于在高压系统工作时将所述第一电压转换为所述第二电压供给所述低压蓄电池; 以及升压DC-DC转换器，被配置为将第二电压转换为第一电压。 当高压系统具有异常电力故障时，升压DC-DC转换器将从低电压蓄电池输出的第二电压转换成第一电压，以供应给转向马达控制器。