Abstract: An in-vehicle power storage device that discharges a battery in a case where collision of a vehicle is detected or predicted, and stops discharging the battery when an over-discharged state has not been reached, and a control method thereof. The in-vehicle power storage device includes: a battery mounted in a vehicle; charge-state detection means for detecting a charge state of the battery; and a discharging load for discharging the battery, and a control device which includes: battery charge-state detection means for detecting a charge state; a battery discharger means for discharging the battery using the load if collision of the vehicle is detected or predicted; and discharge stopping means to stop discharging the battery before the battery becomes over-discharged.

Abstract: A throttle valve 11 that adjusts an amount of air flowing into an intake passage of an internal combustion engine 1, a fuel injection valve 9 that injects fuel into the internal combustion engine 1, and a generator-motor 6 that drives the internal combustion engine 1 via a drive belt 5 are controlled by an internal combustion engine control unit 13. The internal combustion engine control unit 13 opens the throttle valve 11 to a first throttle opening after detecting a request to start the internal combustion engine 1, then causes the fuel injection valve 9 to inject fuel while maintaining the first throttle opening, and then opens the throttle valve 11 to a second throttle opening that is larger than the first throttle opening.

Abstract: A throttle valve 11 that adjusts an amount of air flowing into an intake passage of an internal combustion engine 1, a fuel injection valve 9 that injects fuel into the internal combustion engine 1, and a generator-motor 6 that drives the internal combustion engine 1 via a drive belt 5 are controlled by an internal combustion engine control unit 13. The internal combustion engine control unit 13 opens the throttle valve 11 to a first throttle opening after detecting a request to start the internal combustion engine 1, then causes the fuel injection valve 9 to inject fuel while maintaining the first throttle opening, and then opens the throttle valve 11 to a second throttle opening that is larger than the first throttle opening.

Abstract: To reduce an error of a phase difference between an angle of a crankshaft of an internal combustion engine and an angle of a rotor of a motor generator, provided are a control device for a hybrid vehicle and a control method for a hybrid vehicle, for detecting the angle of the crankshaft, detecting the angle of the rotor of the motor generator, determining whether or not a condition for ensuring that the error of the phase difference between the angle of the crankshaft and the angle of the rotor of the motor generator is becomes small is satisfied, and calculating the phase difference when the error of the phase difference is determined to be small.

Abstract: An AC rotary machine control apparatus is provided with: predriver ICs for giving drive signals to the gates of power converting switching elements bridge-connected to the respective phases of an AC rotary machine; predriver IC output cutting-off switching elements for operating on the basis of a cut-off signal from a calculation processing device having detected an abnormality state of the predriver ICs, and cutting off drive signals given from the predriver ICs to the gates of the power converting switching elements; and a gate driver circuit for becoming conductive on the basis of a signal from the calculation processing device and giving drive signals from a power source circuit to all the gates of the lower arm elements of the power converting switching elements, when drive signals from the predriver Ics are being cut off by the predriver IC output cutting-off switching elements.

Abstract: A second switch (7) is provided between a first power supply circuit including a first capacitor (4) connected in series with a first switch (6) and a second power supply circuit including a second capacitor (5). In a case where a predetermined condition that necessitates supply of electric power from one power supply circuit to the other power supply circuit is established, the first switch (6) is opened to disconnect the first capacitor (4) in the first power supply circuit, and then the second switch (7) is closed to connect between the first power supply circuit and the second power supply circuit.

Abstract: A start control device for an engine includes an engine control unit, a motor control unit, and a control unit which controls the engine control unit and the motor control unit, wherein the control unit, when transferring an engine restart control mode from a motoring control state to a fuel combustion control state, executes the transfer via a motor/engine combined control state, and sets the timing of transferring from the motoring control state to the motor/engine combined control state, to a timing at which a crank angle of a cylinder where fuel is combusted first after starting fuel injection reaches a crank angle at which it is estimated that torque is generated by the first combustion of fuel in the cylinder.

Abstract: While a current cutoff mechanism cuts off charging and discharging currents for a second electric storage device, a DC/DC converter is controlled so as to be in a state where electric power is supplied from a low-voltage side to a high-voltage side, applies voltage conversion to an input voltage of the low-voltage side so that an output voltage of the high-voltage side becomes a predetermined voltage, and after a predetermined state where the induction voltage of the AC power generator can be supplied to the low-voltage side is reached, control of the DC/DC converter is switched from the state where electric power is supplied from the low-voltage side to the high-voltage side to a state where electric power is supplied from the high-voltage side to the low-voltage side.

Abstract: To reduce an error of a phase difference between an angle of a crankshaft of an internal combustion engine and an angle of a rotor of a motor generator, provided are a control device for a hybrid vehicle and a control method for a hybrid vehicle, for detecting the angle of the crankshaft, detecting the angle of the rotor of the motor generator, determining whether or not a condition for ensuring that the error of the phase difference between the angle of the crankshaft and the angle of the rotor of the motor generator is becomes small is satisfied, and calculating the phase difference when the error of the phase difference is determined to be small.

Abstract: An AC rotary machine control apparatus is provided with: predriver ICs for giving drive signals to the gates of power converting switching elements bridge-connected to the respective phases of an AC rotary machine; predriver IC output cutting-off switching elements for operating on the basis of a cut-off signal from a calculation processing device having detected an abnormality state of the predriver ICs, and cutting off drive signals given from the predriver ICs to the gates of the power converting switching elements; and a gate driver circuit for becoming conductive on the basis of a signal from the calculation processing device and giving drive signals from a power source circuit to all the gates of the lower arm elements of the power converting switching elements, when drive signals from the predriver Ics are being cut off by the predriver IC output cutting-off switching elements.

Abstract: Provided are a power generation control method for a vehicle configured to perform idling stop at a predetermined vehicle speed or less by a stop/start system, the vehicle including: a power generator configured to be driven by an internal combustion engine to generate power; and a battery to be charged by the power generated by the power generator, the power being generated in the vehicle under control so as to reduce an amount of fuel to be consumed by the internal combustion engine for power generation, the power generation control method including: detecting a charged and discharged state of the battery; and controlling the internal combustion engine to interrupt power generation involving fuel consumption when a charged state of the battery has recovered to a charged state before the idling stop through charging after the idling stop in accordance with the detected charged and discharged state.

Abstract: A travel control device (1) provided to a vehicle travel device (100) performs correction calculation of the rate of change of a requested acceleration using a relatively small value when the rate of change of the requested acceleration obtained from an angle sensor (2) is small, and performs correction calculation of the rate of change of the requested acceleration using a relatively large value when the rate of change of the requested acceleration obtained from the angle sensor (2) is large.

Abstract: An engine stopping section first selects, when an engine stop condition is satisfied, a power-generation braking mode in which a power-generation braking torque is applied to the engine by a power generation operation of the generator, to thereby apply the power-generation braking torque to the engine, and then selects a short-circuit braking mode in which a short-circuit braking torque is applied to the engine by short-circuiting each energization phase of an armature coil with a semiconductor switch and by causing a field current to flow through a field coil, to thereby apply the short-circuit braking torque to the engine.

Abstract: A start control device for an engine includes an engine control unit, a motor control unit, and a control unit which controls the engine control unit and the motor control unit, wherein the control unit, when transferring an engine restart control mode from a motoring control state to a fuel combustion control state, executes the transfer via a motor/engine combined control state, and sets the timing of transferring from the motoring control state to the motor/engine combined control state, to a timing at which a crank angle of a cylinder where fuel is combusted first after starting fuel injection reaches a crank angle at which it is estimated that torque is generated by the first combustion of fuel in the cylinder.

Abstract: An internal combustion engine control apparatus includes a first period in which the target heater applied effective voltage is set to a first target voltage with which the temperature of an exhaust gas sensor becomes a target temperature at a time when the internal combustion engine is being operated; a second control period in which after the automatic stop mode of the engine has started, the target heater applied effective voltage is set to a second target voltage lower than the first target voltage; and a third period in which after the second period, the target heater applied effective voltage is controlled to a third target voltage higher than the second target voltage and with which the temperature of an exhaust gas sensor becomes a target temperature at a time when the engine is in the automatic stop mode.

Abstract: A throttle valve 11 that adjusts an amount of air flowing into an intake passage of an internal combustion engine 1, a fuel injection valve 9 that injects fuel into the internal combustion engine 1, and a generator-motor 6 that drives the internal combustion engine 1 via a drive belt 5 are controlled by an internal combustion engine control unit 13. The internal combustion engine control unit 13 opens the throttle valve 11 to a first throttle opening after detecting a request to start the internal combustion engine 1, then causes the fuel injection valve 9 to inject fuel while maintaining the first throttle opening, and then opens the throttle valve 11 to a second throttle opening that is larger than the first throttle opening.

Abstract: A travel control device (1) provided to a vehicle travel device (100) performs correction calculation of the rate of change of a requested acceleration using a relatively small value when the rate of change of the requested acceleration obtained from an angle sensor (2) is small, and performs correction calculation of the rate of change of the requested acceleration using a relatively large value when the rate of change of the requested acceleration obtained from the angle sensor (2) is large.

Abstract: A control device (10) includes: target deceleration calculation means (101) for calculating a target deceleration by using a target deceleration map in which a target deceleration is set for each vehicle speed; command power-generation torque calculation means (102) for calculating a command power-generation torque based on the target deceleration, a rotation speed of a power generator (2), and a transmission gear ratio of a transmission (3); and command Duty calculation means (103) for calculating a command Duty based on the command power-generation torque, and the rotation speed and an output voltage of the power generator (2). The target deceleration map is calculated based on a vehicle-speed shift in accordance with actual running conditions when a vehicle is decelerating with fuel stop.

Abstract: An engine stopping section first selects, when an engine stop condition is satisfied, a power-generation braking mode in which a power-generation braking torque is applied to the engine by a power generation operation of the generator, to thereby apply the power-generation braking torque to the engine, and then selects a short-circuit braking mode in which a short-circuit braking torque is applied to the engine by short-circuiting each energization phase of an armature coil with a semiconductor switch and by causing a field current to flow through a field coil, to thereby apply the short-circuit braking torque to the engine.

Abstract: While a current cutoff mechanism cuts off charging and discharging currents for a second electric storage device, a DC/DC converter is controlled so as to be in a state where electric power is supplied from a low-voltage side to a high-voltage side, applies voltage conversion to an input voltage of the low-voltage side so that an output voltage of the high-voltage side becomes a predetermined voltage, and after a predetermined state where the induction voltage of the AC power generator can be supplied to the low-voltage side is reached, control of the DC/DC converter is switched from the state where electric power is supplied from the low-voltage side to the high-voltage side to a state where electric power is supplied from the high-voltage side to the low-voltage side.