Provided is a vehicle including an internal combustion engine, a generator a traction battery, a relay, an electric motor, an auxiliary battery, an electric heater, and a controller. The controller is configured to place the relay in a cut-off state when, at the time of the internal combustion engine being started, temperature of the traction battery is lower than a first predetermined temperature, and charging the auxiliary battery with electric power generated by the generator, and supply the electric power generated by the generator to the electric heater to raise the temperature of the traction battery, until the temperature of the traction battery exceeds a second predetermined temperature that is higher than the first predetermined temperature.

A powertrain for a motor vehicle includes a first electromotive drive module. The first electromotive drive module includes an electric motor and a planetary gear. The electric motor is an inner rotor comprising and internally attached rotor which is circumferentially enclosed by a stator. The inner rotor encloses circumferentially the planetary gear. The planetary gear of the first electromotive drive module can be coupled to a second electromotive drive module. The planetary gear of the first electromotive drive module can be coupled to an internal combustion engine.

The present disclosure relates to an electromechanical apparatus (100) and to a transmission unit comprising the electro-mechanical apparatus (100) for changing motion parameters and to a vehicle comprising the transmission unit, the electro-mechanical apparatus (100) comprising a first rotating electromechanical ma-chine (110) comprising a first stator (112) and a first rotor (120), a second rotating electromechanical machine (130) having a smaller radial extension than the first rotating electromechanical machine (110) and comprising a second stator (132) and a second rotor (140), wherein the second rotating electromechanical ma-chine (130) is arranged radially within the first rotating electromechanical ma-chine (110) thereby forming an interleaving region (176) of the electromechanical apparatus (100), and wherein the first stator (112) and the second stator (132) are ironless, and wherein the first rotor (120) and the second rotor (140) are per-manent-magnet rotors or rotors comprising a winding for electrical excitation.

In a vehicle drive device, a first drive device configured to drive a first engagement device configured to connect or disconnect power transmission between an input member and a first rotor includes a first shift drum and a first cam mechanism. A second drive device configured to drive a second engagement device configured to connect or disconnect power transmission between the first rotor and an output member includes a second shift drum and a second cam mechanism. The first shift drum and the second shift drum are coaxially disposed and connected via a drum drive shaft so as to rotate integrally. The vehicle drive device includes a drum drive source configured to drive the drum drive shaft.

Systems and methods are provided for an electric drive unit. The electric drive unit includes a first electric machine and a second electric machine, a first transmission coupled to the first electric machine, a second transmission coupled to the second electric machine and a disconnect. The disconnect is arranged between a shaft coupled to the first transmission and a shaft coupled to the second transmission and configured to mechanically couple the first transmission and the second transmission.

Systems and methods for an electric axle. The electric axle includes, in one example, a first electric machine directly coupled to a sun gear of a planetary gear set and a second electric machine directly coupled to a carrier of a planetary gear set. The planetary gear set includes a set of planet gears that rotate on the carrier and an output gear that meshes with an input gear in a differential.