Abstract:
A power system of an electric vehicle comprises: a battery group (101); a battery heater (102) which is connected with the battery group (101); a battery management device (103) which is connected with the battery group (101) and the battery heater (102) respectively; an electric distribution box (104) which is connected with the battery group (101) and the battery heater (102) in parallel; a motor (105); a motor controller (106) which is connected with the motor (105) and the electric distribution box (104) respectively; an isolation inductor (L2) which has a first terminal connected with the electric distribution box (104), and a second terminal connected with the battery group (101). The advantage of the invention is to facilitate the electric vehicle to run in a cold region and the battery group can be heated while the electric vehicle is running, thus ensuring a safe and smooth running.
Abstract:
A power system of an electric vehicle, an electric vehicle comprising the same and a method for heating a battery group of the electric vehicle are provided. The power system comprises: a battery group (101); a battery heater (102) for heating the battery group (101); a battery management device (103), configured to adjust a heating power of the battery heater (102) to heat the battery group (101) according to a temperature of the battery group (101) when the temperature of the battery group (101) is lower than a first heating threshold and a residual electric quantity of the battery group (101) is larger than a parking electric quantity threshold, and to control the battery heater (102) to heat the battery group (101) intermittently; an electric distribution box (104); a motor (105); a motor controller (106), connected with the motor and the electric distribution box respectively; and an isolation inductor (L2).
Abstract:
A power system of an electric vehicle, an electric vehicle comprising the same and a method for heating a battery group of the electric vehicle are provided. The power system comprises: a battery group; a battery heater; a battery management device configured to control the battery heater to heat the battery group in a running heating mode or in a parking heating mode according to a temperature and a residual electric quantity of the battery group when the temperature of the battery group is lower than a first heating threshold and the residual electric quantity of the battery group is larger than a parking electric quantity threshold, and to control the electric vehicle to run under a limited power when the battery group is heated in the running heating mode; a motor controller connected with a motor and an electric distribution box respectively; and an isolation inductor.
Abstract:
A power system of an electric vehicle, an electric vehicle comprising the same and a method for heating a battery group of the electric vehicle are provided. The power system comprises: a battery group (101), a battery heater (102) connected with the battery group (101); a battery management device (103) configured to control the battery heater (102) to heat the battery group (101) in a running heating mode or in a parking heating mode according to a temperature and a residual electric quantity of the battery group (101) when the temperature of the battery group (101) is lower than a first heating threshold and the residual electric quantity of the battery group (101) is larger than a parking electric quantity threshold, and to determine whether to control the battery heater (102) to heat the battery group (101) according to a current throttle depth change rate of the electric vehicle; an electric distribution box (104); a motor (105); a motor controller (106); and an isolation inductor (L2).
Abstract:
A power system of an electric vehicle, an electric vehicle comprising the same and a method for heating a battery group (101) of the electric vehicle are provided. The power system comprises a battery group (101), a battery heater (102) connected with the battery group (101), and a battery management device (103) connected with the battery group (101 ) and the battery heater (102) respectively. The battery management device (103) is configured to adjust a heating power of the battery heater (102) to heat the battery group (101) according to a temperature of the battery group (101) when the temperature of the battery group (101) is lower than a first heating threshold and a residual electric quantity of the battery group (101) is larger than a parking electric quantity threshold and to control the electric vehicle to run under a limited power when the battery group (101) is heated in a running heating mode. The power system further comprises a motor controller (106) connected with a motor (105) and an electric distribution box (104) respectively, and an isolation inductor (L2).
Abstract:
A power system of an electric vehicle, an electric vehicle comprising the same and a method for heating a battery group of the electric vehicle are provided. The power system comprises a battery group (101), a battery heater (102), in which the battery heater (102) comprises a output power adjusting module configure to adjust a heating power of the battery heater (102) by adjusting a charge current and/or a discharge current, a battery management device (103) configured to control the output power adjusting module to adjust the heating power of the battery heater (102) to heat the battery group (101) according to a temperature of the battery group (101) when the temperature of the battery group (101) is lower than a first heating threshold and a residual electric quantity of the battery group is larger than a parking electric quantity threshold; a motor controller (106) connected with a motor (105) and an electric distribution box (104) respectively, and an isolation inductor (L2).
Abstract:
A power system of an electric vehicle, an electric vehicle comprising the same and a method for heating a battery group (101) of the electric vehicle are provided. The power system of the electric vehicle comprises a battery group (101), a battery heater (102) connected with the battery group (101), and a battery management device (103) connected with the battery group (101) and the battery heater (102) respectively. The battery management device (103) is configured to control the battery heater (102) to heat the battery group (101 ) intermittently when the temperature of the battery group (101) is lower than a first temperature threshold and a residual electric quantity of the battery group (101) is larger than an electric quantity threshold. The power system further comprises an electric distribution box (104), a motor (105), a motor controller (106) connected with the motor (105) and the electric distribution box (104) respectively, and an isolation inductor (L2).
Abstract:
A power system of an electric vehicle, an electric vehicle comprising the same and a method for heating a battery group of the electric vehicle are provided. The power system comprises: a battery group (101); a battery heater (102) connected with the battery group (101); a battery management device (103) connected with the battery group (101) and the battery heater (102) respectively, and configured to control the battery heater to heat the battery group in a running heating mode or in a parking heating mode according to a temperature and a residual electric quantity of the battery group when the temperature of the battery group is lower than a first heating threshold and the residual electric quantity of the battery group is larger than a parking electric quantity threshold; a motor controller (106) connected with a motor (105) and an electric distribution box (104) respectively; and an isolation inductor (L2).
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:
A power system of an electric vehicle, an electric vehicle comprising the same and a method for heating a battery group of the electric vehicle are provided. The power system comprises: a battery group; a battery heater, in which the battery heater comprises a output power adjusting module configure to adjust a heating power of the battery heater by adjusting a charge current and/or a discharge current; a battery management device configured to control the output power adjusting module to adjust the heating power of the battery heater to heat the battery group according to a temperature of the battery group when the temperature of the battery group is lower than a first heating threshold and a residual electric quantity of the battery group is larger than a parking electric quantity threshold; a motor controller connected with a motor and an electric distribution box respectively; and an isolation inductor.