Abstract:
There is provided a motor drive comprising: a temperature sensor arranged to sense a temperature of the drive; a braking resistor; switching means arranged when activated to cause current to flow to the braking resistor; and controlling means arranged to activate the switching means when the sensed temperature falls below a predetermined threshold. There is also provided a method of controlling a temperature of a motor drive comprising a braking resistor. The method comprising comprises: monitoring a temperature of the drive; and activating switching means to cause current to flow to the braking resistor when the monitored temperature falls below a predetermined threshold.
Abstract:
A vehicle includes a power reception unit, a rectifier, a power line, and a cooling fan. The power reception unit of the vehicle is configured to receive, in a contactless manner, AC power output from a power transmission unit of a power transmission device. The rectifier rectifies the electric power received by the power reception unit. The electric power rectified by the rectifier is output through the power line. The cooling fan cools the power reception unit. The cooling fan is electrically connected to the power line, and operates with the electric power received from the power line.
Abstract:
A warm-up apparatus for a vehicle including a system which charges a battery by using an external power supply is provided. The warm-up apparatus includes a heater for warming up, a current detector, a voltage detector and a resistance changer. The heater is mounted in the vehicle and produces heat by receiving electric power from the external power supply. The current detector detects an allowable current value of the external power supply. The voltage detector detects an output voltage value of the external power supply. The resistance changer changes an electric resistance value of the heater based on the allowable current value detected by the current detector and the output voltage value detected by the voltage detector.
Abstract:
A work vehicle comprising, a power unit, an electric motor activated by electric power from the power unit, a propelling transmission system for receiving drive power from the electric motor, a cabin including a roof portion the driver rides, an air conditioner for adjusting air temperature in the interior of the cabin. the power unit and the air conditioner are provided in the roof portion of the cabin.
Abstract:
An auxiliary power system for an electrical load in a vehicle electrical system includes an auxiliary battery, a thermal transducer in physical contact with the auxiliary battery, a charger circuit for controlling the charging of the battery in response to at least a temperature of the auxiliary battery, and an output power delivery circuit for providing power to an electrical load during normal and emergency conditions. The auxiliary power system is housed in a thermally-conductive enclosure that is in thermal communication with the charger circuit and the power delivered circuit. The power delivery circuit selectively delivers power to the electrical output from both an electrical input terminal and from the battery based on the magnitude of a voltage available on the electrical input terminal.
Abstract:
A dual battery electrical system for a vehicle having an engine comprises a primary load and a secondary load and is switchable between an ON state in which the engine is running, an OFF state in which the engine is not running, a START state in which the primary load requires power to start the engine, and a PAUSE state in which the engine is not running. A first battery powers the primary load, a second battery powers the secondary load, a battery switch is closable to connect the first battery to the second battery such that both batteries can provide power to both loads. The transition to and from the OFF state is via a user activated mechanism and transition to and from the PAUSE state is via a user-independent mechanism. A controller controls operation of the battery switch when the system enters and/or leaves the PAUSE state.
Abstract:
A control system for controlling high current devices in a vehicle is disclosed. The system includes a power source, a first and a second plurality of high current devices and a high current device control module. The high current device control module is connected to the power source and has a multiplexer circuit and a plurality of driver circuits connected to the first and second plurality of high current devices. The multiplexer circuit is in communication with the plurality of driver circuits to selectively activate the first plurality of high current devices or the second plurality of high current devices.
Abstract:
An on-vehicle electronic device includes a main body which is fastened to a vehicle and has a first terminal, and an operation unit which is detachably mounted in the main body and which has a second terminal electrically connected to the first terminal when the operation unit is mounted in the main body. The main body includes a reference power source applying a reference voltage to the first terminal, and a voltage detection unit for detecting a voltage applied to the first terminal. The main body further includes a mounting detection unit. The mounting detection unit determines, based on a difference between a first detection voltage detected by the voltage detection unit when the operation unit is mounted and a second detection voltage detected by the voltage detection unit when the operation unit is not mounted, whether or not the operation unit is mounted and electrically connected to the main body via the first and second terminals.
Abstract:
A power storage system includes: a power storage device mounted on a vehicle; a heat source configured to be capable of heating the power storage device with electric power; and a control device configured to control the heat source. The control device is configured to detect supply power that is supplied to the vehicle from a power-supplying facility provided outside the vehicle, determine a first target temperature by using the detected supply power, and control the heat source to cause a temperature of the power storage device to approach the first target temperature.
Abstract:
An engine system for an off-highway vehicle includes a diesel engine configured to drive a driveline of the vehicle; an after-treatment arrangement configured to reduce emissions from the engine system; an after-treatment heating element configured to raise an operating temperature of the after-treatment arrangement; an electric energy storage device; and a controller configured to direct energy from the electric energy storage device to the after-treatment heating element in order to raise the operating temperature of the after-treatment arrangement.