Patent application number | Description | Published |
20140077732 | DEVICE AND METHOD FOR MANAGING THE ELECTRIC BRAKING OF A VEHICLE - A device for managing electric braking power includes a controller and a DC bus with a first pole that connects to a vehicle traction machine, a second pole that connects to a battery, and a connection point. The machine is associated with an inverter that delivers an electric braking power via the DC bus. A dissipation branch is connected to the DC bus at the connection point. The device also includes, on the DC bus between the connection point and the second pole, a current sensor and a charging switch that controls a current that flows on the DC bus from the first pole to the second pole. The controller evaluates a difference between a battery recharge limit current and the current on the DC bus, such that the charging switch is left closed if the current is less than the limit current. | 03-20-2014 |
20140084820 | DEVICE AND METHOD FOR MANAGING THE ELECTRIC BRAKING OF A VEHICLE - A device for managing electric braking power includes a continuous bus, a dissipation branch, a current sensor, a controller, and an electronic charging switch. The bus includes a first pole for connection to a vehicle electric traction machine, a second pole for connection to a battery, and a connection point for connection to the dissipation branch, which includes an electronic dissipation switch connected to a dissipation resistor. The current sensor and the charging switch are positioned on the bus between the connection point and the second pole. The charging switch controls a flow of current over the bus from the first pole to the second pole. When power sent over the bus is greater than a total of power that charging of the battery can absorb and power that the dissipation resistor can dissipate, the controller causes the charging switch to open. | 03-27-2014 |
20140111129 | UNIT COMPRISING AN ELECTRIC POWER SOURCE INCLUDING AT LEAST TWO ELEMENTS OF DIFFERENT TECHNOLOGIES AND AN INVERTER FOR CONTROLLING AN ALTERNATING-CURRENT ELECTRIC MOTOR - An installation for an electric motor includes an electrical energy source with elements of different technologies and an inverter for controlling an AC electric motor. The inverter includes an AC current generator for delivering current to a terminal strip to be connected to phases of the electric motor, a supply line, current sensors on certain phases supplying the electric motor, a current sensor on the supply line, an input for receiving information that includes a limit current of the source and a requested-torque setpoint, and a controller for controlling phase currents of the electric motor as a function of the setpoint while maintaining a current of the supply line at an acceptable value as a function of the limit current of the source. The installation makes it possible to impose a maximum current on the current generator without risk of impairing the current generator. | 04-24-2014 |