A parallel hybrid drive train, in particular for a working machine, includes an internal combustion engine (1), an electrical machine (2) and hydraulic aggregates (3, 4, 5, 9) for driving working devices (6-8) and for moving the working machine. In order to increase the efficiency, the rotational speed of the internal combustion engine is lowered, that is to say the load point is moved. Increased power requirements are detected via a driver input and provide a desired rotational speed. The electrical machine assists the acceleration of the internal combustion engine to said desired rotational speed.

A power delivery system includes a turbocharger assist device and an inverter. The turbocharger assist device is mechanically connected to a turbocharger that is operably coupled to an engine, and is configured to generate electric current based on rotation of a rotor of the turbocharger. The inverter is electrically connected to the turbocharger assist device via a bus, and is configured to receive the electric current generated by the turbocharger assist device via the bus and supply the electric current to power a load.

A hybrid power drive system, including a power battery device, a range extender system, and a motor drive system. The power battery device is configured to supply power to the motor drive system. The range extender system includes an engine and a generator. The generator is able to generate power under the driving of the engine to supply the power to the motor drive system and/or charge the power battery device. The hybrid power drive system further includes a vehicle control unit configured to control the engine and/or generator of the range extender system to generate a driving force. The range extender system is mechanically connected to a main coupling mechanism to transmit the generated driving force to a main drive axle of a vehicle by means of the main coupling mechanism to drive wheels on both sides of the axle to rotate. Also provided is a vehicle having the hybrid power drive system. According to the hybrid power drive system and the vehicle having same, the vehicle control unit is utilized to control the engine and/or generator of the range extender system to generate the driving force for different application operating conditions, and thus the economy of the vehicle can be effectively improved.

A control unit that controls a travelling state and an air conditioning state of a vehicle includes: a drive control unit performing a vehicle speed control and a power train control, the vehicle speed control selectively executing an acceleration operation where an engine mounted on the vehicle is operated and a deceleration operation where the engine is stopped to allow the vehicle to coast, the power train control selectively executing activation or deactivation of the engine; m and an air conditioning control unit that controls an air conditioning system provided in the vehicle to execute an air conditioning control. A content of control is changed for at least one of the vehicle speed control, the power train control and the air-conditioning control while the air conditioning system is operating, compared to a case where the air conditioning system is not operating.

The invention relates to a method for protecting an on-board electrical network of a truck having a base-line equipment provided by a truck manufacturer, and having base-line loads having a current consumption, an auxiliary equipment fitted a posteriori by a truck body builder, and having auxiliary loads having a current consumption, and a battery. The method further comprises, when the engine of the truck is ON: determining that the engine is to be turned off, determining a total current consumption of the truck, determining the battery maximum capacity, if the total current consumption is lower than the battery maximum capacity, turning off the engine, and, if the total current consumption is higher than the battery maximum capacity, reducing the current consumption of at least one adjustable auxiliary load.

A vehicle control system includes at least one sensor and a power supply control system. The sensor is on board a vehicle system and configured to generate vehicle data relating to a condition or parameter associated with the vehicle system. The power supply control system is configured to control one or more power supplies on board the vehicle system and to receive the vehicle data from the at least one sensor. The power supply control system is also configured to compare the vehicle data to one or more criteria relating to vehicle movement, and, in response to a determination that the vehicle data meets the criteria and receipt of a signal indicative of the vehicle system carrying (or being configured to carry) cargo of a predetermined material, generate a control signal to deactivate at least one of the power supplies.

A controller, after a cumulative amount of energy consumed by at least one auxiliary load during travel of a vehicle along a route exceeds a predetermined amount of energy allocated for the at least one auxiliary load during travel of the vehicle along the route, reduces the power provided to the at least one auxiliary load from an energy storage arrangement.

An electronic control unit of a hybrid vehicle is configured to determine whether or not parking operation of the hybrid vehicle is being performed. The electronic control unit is configured to control the engine and the rotary electric machine such that starting the engine when the parking operation of the hybrid vehicle is being performed is harder than starting the engine when the parking operation of the hybrid vehicle is not being performed.

A vehicle drive system for a vehicle including a first prime mover, a first prime mover driven transmission, and a rechargeable power source can be configured for reduced fuel consumption at idle. The vehicle drive system includes an electric motor in direct or indirect mechanical communication with the first prime mover. The control system causes fuel to be eliminated to the first prime mover while the vehicle is stopped and causes the electric motor to rotate the first prime mover at a speed, thereby reducing fuel consumption at idle for the vehicle.

A vehicle includes an auxiliary battery and one or more accessory loads. An accessory load command is modulated such that the auxiliary battery outputs a discharge current to an accessory load. The discharge current has, in addition to a current component for driving the accessory load, an alternating current (AC) component to cause a temperature of the auxiliary battery to increase.