There is provided a cart. An electric motor generates a travel driving force based on a control signal from an external control unit configured to perform control related a travel path of the cart. A battery supplies power to the electric motor. An engine drives a power generator which is configured to be capable of charging the battery. A determination unit determines whether the engine is to be operated, based on a predetermined condition.

When a first type gear shift line is used as a gear shift line to change the gear ratio, and a predetermined condition including a condition that a state of charge of the power storage device is equal to or lower than a first ratio is satisfied, the control device changes the gear shift line to a second type gear shift line that recommends a lower speed gear ratio than the first type gear shift line.

A method for controlling an electric oil pump (EOP) of a hybrid vehicle may include determining whether or not the hybrid vehicle is in a decelerating situation in an EV mode, driving the EOP at an RPM at a point L, corresponding to a minimum RPM of the EOP to form a target line pressure of a transmission, upon determining that the hybrid vehicle is decelerating in the EV mode, determining whether or not an RPM of a turbine is equal to or greater than a predetermined reference RPM, and driving the EOP at an RPM acquired by adding a predetermined additional RPM to secure an additional flow rate of automatic transmission fluid supplied to a balance chamber of an engine clutch to the RPM at the point L, upon determining that the RPM of the turbine is equal to or greater than the predetermined reference RPM.

A climate control system for vehicles includes an internal combustion engine that may be coupled to selectively power a first motor generator, and an air conditioning compressor that may be selectively powered by one or both of the first motor generator and a second motor generator, or by the internal combustion engine. The system may include a rechargeable battery, and a vehicle controller having a vehicle state circuit structured to determine a vehicle operating condition value and a state-of-charge value of the rechargeable battery, and a coupling determination circuit structured to provide an internal combustion engine-first motor generator coupling command in response to the vehicle operating condition value and the state-of-charge value. In response to the internal combustion engine-first motor generator coupling command being provided as coupled, the internal combustion engine may power the first motor generator.

A control apparatus for a vehicle cooling apparatus that includes: a PCU cooling unit for cooling a power control unit controlling an electric motor; a T/A cooling unit for cooling a drive-force transmitting apparatus including the electric motor; and a heat exchanger for transferring heat between the PCU cooling unit and the T/A cooling unit. The T/A cooling unit includes a first pump for circulating a refrigerant of the T/A cooling unit, while the PCU cooling unit includes a second pump for circulating a refrigerant of the PCU cooling unit. The control apparatus includes a controlling portion configured to cause the first pump to be driven when a temperature of the power control unit is higher than a threshold temperature value and a temperature of the refrigerant of the PCU cooling unit is higher than a temperature of the refrigerant of the T/A cooling unit.

In a hybrid vehicle, each of an engine and an MG1 is mechanically coupled to a drive wheel with a planetary gear being interposed. The planetary gear and an MG2 are configured such that motive power output from the planetary gear and motive power output from the MG2 are transmitted to the drive wheel as being combined. The engine includes a turbocharger, an EGR valve, and a WGV. When opening of the EGR valve exceeds first opening, a controller maintains opening of the WGV at second opening or larger.

To provide a vehicle, vehicle motion performance of which can be made high by downsizing a drive unit having an engine and a motor. A drive unit for vehicle travel has the engine and the motor. The motor is arranged adjacent to a rear side of the engine. In a housing of the motor, parts of oil control valves and motor cooling oil paths, through each of which motor cooling oil flows, are provided. The motor cooling oil flowing through first motor cooling oil paths exchanges heat with engine oil in a first heat exchanger. The motor cooling oil flowing through second motor cooling oil paths exchanges heat with an engine cooling coolant in a second heat exchanger.

A method for controlling a hybrid vehicle including a battery charged with electric power generated by an engine, including a motor as a drive source, and having multiple running modes that can be selected through a mode operation, the running modes including a normal mode configured to perform charging of the battery according to a running state, and a charge mode configured to perform electric power generation by the engine according to a mode operation, the method comprising: setting a range of charge amount that allows for charging of the battery based on the electric power generated; and setting an upper limit of the range of charge amount in the charge mode to be lower than an upper limit of the range of charge amount in the normal mode.

The present invention relates to a system for predicting battery usage habits and battery discharge tendencies. The system includes a battery sensor that senses a state of charge (SOC) of a battery and a controller hat calculates battery power generation amount during driving time of a vehicle and battery consumption during parking time of the vehicle based on information sensed by the battery sensor. A storage unit for stores the battery power generation amount, the battery consumption, time at which the vehicle is tuned on/off, and time at which the controller enters a sleep/wake-up state.

A hybrid power transmission apparatus for a vehicle is disclosed. The transmission includes an engine and first and second motor-generators as power sources. The transmission may include: a planetary gear set configured to include a first rotation element that is operatively connected to the first motor-generator, a second rotating element that is operatively connected to the engine and operatively connected to a first intermediate shaft, and a third rotation element to which a second intermediate shaft is operatively connected; a synchronizer configured to optionally operatively connect the second motor-generator to the first intermediate shaft, the second intermediate shaft, or both the first and second intermediate shafts; and an output shaft operatively connected to the second intermediate shaft to output power.