Abstract:
A power system for an electric vehicle, an electric vehicle and a method for charging a power battery are provided. The power system includes: a power battery (10); a charge-discharge socket (20); a bidirectional DC-DC module (30); a driving control switch (40); a bidirectional DC-AC module (50); a motor (M); a motor control switch (60); a charge-discharge control module (70); a battery manager (108); and a control module (80) configured to control the driving control switch (40), the motor control switch (60) and the charge-discharge control module (70) so as to control the power system to enter a charge-discharge mode, and to control the power battery (10) to charge and discharge in a pulse mode so as to heat the power battery (10) when the temperature of the power battery (10) is lower than a predetermined temperature.
Abstract:
A power system for an electric vehicle, an electric vehicle and a motor controller for an electric vehicle are provided. The power system includes: a power battery (10); a charge-discharge socket (20); a three-level bidirectional DC-AC module (30); a motor control switch (40); a charge-discharge control module (50) having a first terminal connected with an AC terminal of the three-level bidirectional DC-AC module (30) and a second terminal connected with the charge-discharge socket (20); and a control module (60) connected with a third terminal of the charge-discharge control module (50) and a third terminal of the motor control switch (40), and configured to control the charge-discharge control module (50) and the motor control switch (40) according to a current working mode of the power system.
Abstract:
An on-vehicle power supply system and an electric vehicle are provided. The on-vehicle power supply system includes: a power battery (10); a charge-discharge socket (20) connected with an external load (1001); a three-level bidirectional DC-AC module (30) having a first DC terminal connected with a first terminal of the power battery (10) and a second DC terminal connected with a second terminal of the power battery (10); a charge-discharge control module (50) having a first terminal connected with an AC terminal of the three-level bidirectional DC-AC module (30) and a second terminal connected with the charge-discharge socket (20); and a control module (60) connected with the charge-discharge control module (50) and the three-level bidirectional DC-AC module (30), and configured to control the three-level bidirectional DC-AC module (30) to convert a DC voltage of the power battery (10) into an AC voltage.
Abstract:
A charging system for an electric vehicle and a method for controlling charging of an electric vehicle are provided. The charging system comprises: a power battery (10); a charge-discharge socket (20); an external power supply device (1002); a charging connection device (1001); and an energy control device (1003), comprising: a three-level bidirectional DC-AC module (30); a charge-discharge control module (50); and a control module (60) configured to control the charge-discharge control module (50) according to a current working mode of the electric vehicle. The energy control device (1003) and the external power supply device (1002) communicate by transmitting a modulated PWM signal to each other via the charging connection device (1001), and the control module (60) controls the three-level bidirectional DC-AC module (30) and the charge-discharge control module (50) to charge the power battery (10) by the external power supply device (1002).
Abstract:
A vehicle mutual-charging system and a charging connector are provided. The system includes: a first electric vehicle (1002) and a second electric vehicle (1003), each of the first electric vehicle (1002) and the second electric vehicle (1003) including a power battery (10), a battery manager (103), an energy control device (1005) and a charge-discharge socket (20), in which the energy control device (1005) includes: a three-level bidirectional DC-AC module (30), a charge-discharge control module (50),a control module (60); and a charging connector (1004) connected between the first electric vehicle (1002) and the second electric vehicle (1003) and including a first charging gun adaptor connected with the charge-discharge socket (20) of the first electric vehicle and a second charging gun adaptor connected with the charge-discharge socket (20) of the second electric vehicle at both ends thereof respectively.
Abstract:
A charge control system for an electric vehicle and an electric vehicle are provided. The charge control system includes: a charge-discharge socket (20); a three-level bidirectional DC-AC module (30); a charge-discharge control module (50); a filtering module (70); and a control module (60) connected with a third terminal of the charge-discharge control module (50) and configured to control the charge-discharge control module (50) to turn on, to sample an output voltage of an external grid by using a connection midpoint of filtering capacitors in the filtering module (70) as a reference point, and to control the three-level bidirectional DC-AC module (30) according to the output voltage of the external grid so as to control the external grid to charge the power battery (10), when the external grid is in an angle connection mode and a current working mode of the electric vehicle is a charge-discharge mode.
Abstract:
A charging system for a vehicle, a vehicle comprising the charging system, and a method for controlling charging a vehicle with the charging system are provided. The charging system comprises: a battery (1); a first charging branch (2) comprising a first rectifying unit (21) and a first charging interface (22), in which the battery (1) is connected with the first charging interface (22) via the first rectifying unit (21); a second charging branch (3) comprising a second rectifying unit (31) and a second charging interface (32), in which the battery (1) is connected with the second charging interface (32) via the second rectifying unit (31); and a control unit (4) connected with the first rectifying unit (21) and the second rectifying unit (31) respectively and configured to control the first charging branch (2) and the second charging branch (3) to charge the battery (1).
Abstract:
A charging system for a vehicle, a charging system for a battery of a vehicle, a charging device for a vehicle, and a vehicle comprising the same are provided. The charging system for the vehicle comprises: a battery (1) configured to output a DC voltage; a charging interface (5) connected with the vehicle; a converting unit (3) connected with the battery (1) and the charging interface (5) respectively; and a control unit (4) connected with the converting unit (3), and configured to control the converting unit (3) to convert the DC voltage outputted by the battery (1) to an AC voltage and to charge the vehicle via the charging interface (5) with the AC voltage.
Abstract:
Disclosed are a carrier communication method based on electric automobile charging/discharging, comprising the following steps: S1: after being powered up and started, an electric automobile detecting whether a carrier signal from a peripheral device is received through an interface wire harness and whether the carrier signal is correct; S2: when detecting the carrier signal and detecting that the carrier signal is correct, the electric automobile receiving the carrier signal through the interface wire harness; and S3: the electric automobile performing coupling and filtering on the received carrier signal to convert the carrier signal into a standard carrier signal, and demodulating the standard carrier signal into a digital signal to obtain information of the peripheral device. The method, on the basis of not increasing the number of wire harness, may implement data transmission and sharing between an automobile and ECU modules of a peripheral device, and carrier communication with other signal lines as communication media at the same time, so as to avoid construction and investment of a new communication network, and reduce manufacturing cost and maintenance difficulty. Further disclosed are a carrier communication system and a carrier apparatus based on electric automobile charging/discharging.
Abstract:
Disclosed are an electric vehicle and a power system and a motor controller for an electric vehicle. The power system for an electric vehicle comprises a power battery (10); a charge-discharge socket (20); a two-way DC/DC module (30); a drive control switch (40); a two-way DC/AC module (50); a motor control switch (60); a charge-discharge control module (70); and a controller module (80). The controller module (80) is connected to the drive control switch (40), the motor control switch (60) and the charge-discharge control module (70), and the controller module (80) is used for controlling the drive control switch (40), the motor control switch (60) and the charge-discharge control module (70) in accordance with the current operating mode of the power system. The power system can achieve high-power AC charging to an electric vehicle using a civil or industrial AC power grid so that users can perform a quick charge at a high efficiency anytime and anywhere. In addition, the applicable battery has a wide range of operating voltages, thereby saving space and costs.