公开(公告)号：WO2014154174A1

公开(公告)日：2014-10-02

申请号：PCT/CN2014/074307

申请日：2014-03-28

Applicant: SHENZHEN BYD AUTO R&D COMPANY LIMITED ,  BYD COMPANY LIMITED

Inventor： LI, Song ,  CHEN, Yanjun ,  REN, Lin

IPC: B60W10/06 ,  B60W10/26 ,  B60W30/18

CPC classification number: H02J7/1469 ,  B60R16/03 ,  H02J7/0068 ,  H02J2007/005 ,  Y02T10/7011

Abstract: An energy-saving method and system (402) are provided. The energy-saving method includes: detecting a working condition of a motor (301) in the vehicle (401); detecting a fuel injection quantity of the motor (301), a generating current of a generator (302) in the vehicle (401) and an electric quantity of a battery (305) in the vehicle (401) when the motor (301) is working; determining whether the generating current of the generator (302) is less than a first current threshold when the fuel injection quantity is zero; determining whether the electric quantity is less than a first electric quantity threshold when the generating current is less than the first current threshold; controlling the generator (302) to charge the battery (305) when the electric quantity of the battery (305) is less than the first electric quantity threshold; and controlling the generator (302) to reduce the generating current when the electric quantity of the battery (305) is greater than or equal to the first electric quantity threshold.

Abstract translation: 提供节能方法和系统（402）。 节能方法包括：检测车辆（401）中的电动机（301）的工作状态; 检测电动机（301）的燃料喷射量，车辆（401）中的发电机（302）的发电电流和电动机（301）为何时车辆（401）中的电池（305）的电量 加工; 当燃料喷射量为零时，确定发电机（302）的发电电流是否小于第一电流阈值; 当所述发电电流小于所述第一电流阈值时，确定所述电量是否小于第一电量阈值; 当电池（305）的电量小于第一电量阈值时，控制发电机（302）对电池（305）充电; 以及当电池（305）的电量大于或等于第一电量阈值时，控制发电机（302）以减小发电电流。

公开(公告)号：WO2014154159A1

公开(公告)日：2014-10-02

申请号：PCT/CN2014/074190

申请日：2014-03-27

Applicant: SHENZHEN BYD AUTO R&D COMPANY LIMITED ,  BYD COMPANY LIMITED

Inventor： LI, Song ,  CHEN, Yanjun ,  DENG, Decai ,  SU, Qingyan ,  REN, Lin

IPC: F02M37/08 ,  F02D41/20 ,  F02D41/30

CPC classification number: F02D41/3082 ,  F02D33/003 ,  F02D2200/0602 ,  F02D2200/602 ,  F02D2250/31 ,  F02M37/10

Abstract: A fuel supply system (1000) and a fuel supply control method for an engine (60) of a vehicle are provided. The fuel supply system (1000) includes: a first detecting unit (10) configured to detect an operating state of the vehicle to generate an operating state signal; an engine control unit (20) connected with the first detecting unit (10) and configured to obtain an opening degree of a throttle valve according to the operating state signal, to obtain a current fuel demand according to the opening degree, and to generate a fuel demand control signal based on the current fuel demand; a fuel pump (30) configured to supply fuel to the engine (60); a fuel pump motor (40) configured to drive the fuel pump (30); and a fuel pump motor control unit (50) connected with the fuel pump motor (40) and the engine control unit (20) respectively and configured to control the fuel pump motor (40) according to the fuel demand control signal.

Abstract translation: 提供燃料供给系统（1000）和用于车辆的发动机（60）的燃料供给控制方法。 燃料供给系统（1000）包括：第一检测单元（10），被配置为检测车辆的运行状态以产生运行状态信号; 与第一检测单元（10）连接的发动机控制单元（20），其被配置为根据操作状态信号获得节气门的开度，以根据开度获得当前的燃料需求量，并且生成 燃料需求控制信号基于目前的燃料需求; 配置为向所述发动机（60）供给燃料的燃料泵（30）。 构造成驱动燃料泵（30）的燃料泵马达（40）; 以及分别与所述燃料泵电动机（40）和所述发动机控制单元（20）连接的燃料泵电动机控制单元（50），并且构成为根据所述燃料需求控制信号来控制所述燃料泵电动机（40）。