Patent application number | Description | Published |
20100026217 | Rotating electrical machine control system and vehicle drive system - A rotating electrical machine control system includes a frequency converting portion that is interposed between a rotating electrical machine for driving a vehicle and a DC power source for supplying electric power to the rotating electrical machine, and that converts an output of the DC power source to an AC output at least during a powering operation of the rotating electrical machine; a voltage converting portion that is interposed between the DC power source and the frequency converting portion, and that boosts the output of the DC power source based on a boost command value which is set according to a target torque and a rotational speed of the rotating electrical machine; and a control portion for controlling the frequency converting portion and the voltage converting portion. | 02-04-2010 |
20100026218 | Rotating electrical machine control system and vehicle drive system - A rotating electrical machine control system includes a frequency converting portion that is interposed between a rotating electrical machine for driving a vehicle and a DC power source for supplying electric power to the rotating electrical machine, and that converts an output of the DC power source to an AC output at least during powering operation of the rotating electrical machine; a voltage converting portion that is interposed between the DC power source and the frequency converting portion, and that boosts the output of the DC power source based on a boost command value which is set according to a target torque and a rotational speed of the rotating electrical machine; and a control portion for controlling the frequency converting portion and the voltage converting portion. | 02-04-2010 |
20100026222 | Dynamo-electric machine control system and vehicle driving system including the same - A dynamo-electric machine control system including a dynamo-electric machine and an inverter that is interposed between a battery and the dynamo-electric machine and that controls a current flowing through the dynamo-electric machine, wherein a rotation speed and an output torque of the dynamo-electric machine are controlled by the inverter, the dynamo-electric machine control system includes a battery power deriving unit that derives a battery power to be supplied from the battery when the dynamo-electric machine is operated at the rotation speed and the output torque; a limit power determining unit that variably determines a limit power, which is a maximum allowable value of the battery power, in accordance with a battery voltage; and a torque limiting unit that limits the torque of the dynamo-electric machine such that the battery power derived by the battery power deriving unit does not exceed the limit power. | 02-04-2010 |
20100140003 | ELECTRIC MOTOR CONTROL DEVICE, DRIVE DEVICE AND HYBRID DRIVE DEVICE - An electric motor control device includes an inverter that supplies an output of a primary-side DC power supply to an electric motor to control driving of the electric motor; a converter that includes a voltage increasing power supply device that increases a voltage of the primary-side DC power supply to supply the inverter with the increased voltage as a secondary voltage, and a regenerative power supply device that reversely supplies regenerative power from the inverter to the primary-side DC power supply; a secondary-side target voltage determination unit; a converter control unit; and an electric motor control unit. | 06-10-2010 |
20100201293 | ROTARY ELECTRIC MACHINE CONTROL SYSTEM - A rotary electric machine control system includes a battery electric power calculation unit for calculating battery electric power that is supplied from the battery; a torque limitation unit for limiting an output torque of the rotary electric machine; and a battery electric power abrupt variation estimation unit for estimating that the battery electric power is in an abrupt variation state in which the battery electric power is varying abruptly on the basis of at least one of a variation rate of the battery electric power and a variation rate of a rotational speed of the rotary electric machine. | 08-12-2010 |
20100250037 | Hybrid drive device - A hybrid drive device includes a transfer torque estimation unit for estimating a transfer torque transferred by the lock-up clutch with the lock-up clutch slipping; and a target rotational speed determination unit for determining the target rotational speed of the rotary electric machine to be achieved in the rotational speed control on the basis of the transfer torque estimated by the transfer torque estimation unit, a target transmission device input torque of the transmission device determined on the basis of an operating state of a vehicle, and a turbine speed of the turbine runner, wherein the engine startup control device starts up the engine by controlling the rotational speed of the rotary electric machine to the target rotational speed determined by the target rotational speed determination unit. | 09-30-2010 |
20110245034 | CONTROL SYSTEM - A control system configured with a speed change mechanism. When starting combustion in an internal combustion engine under a combustion-stopped vehicle running condition, the combustion in the internal combustion engine is stopped, the speed change mechanism forms the one-way transmission speed, and the output member rotates. A rotational speed feedback control is executed that sets a value that multiplies a rotational speed of the output member by a speed ratio of the one-way transmission speed as a reference rotational speed of the input member, sets a starting rotational speed, and controls a rotary electric machine such that the rotational speed of the input member matches the target rotational speed. During execution of the rotational speed feedback control, a start control is performed that increases engagement pressure of the clutch to increase a rotational speed of the internal combustion engine and start combustion in the internal combustion engine. | 10-06-2011 |
20110246008 | CONTROL DEVICE - A control device controlling a hybrid vehicle drive apparatus that includes an internal combustion engine, a rotary electric machine drivingly connected to a wheel and a clutch selectively drivingly connecting the internal combustion engine with the rotary electric machine. The control device performs control such that, when a start request of the internal combustion engine is issued in the state in which the clutch is released and combustion of the internal combustion engine is stopped, a rotational speed of the internal combustion engine is raised to a rotational speed of the rotary electric machine by transmitting driving torque of the rotary electric machine to the internal combustion engine by increasing a torque transfer capacity of the clutch, and, after the rotational speed of the internal combustion engine is synchronized with the rotational speed of the rotary electric machine, the combustion of the internal combustion engine is started. | 10-06-2011 |
20120059542 | CONTROL DEVICE - A control device that controls a drive device for a power transfer path, the control device configured with a loss torque estimation section that estimates the value of loss torque due to drag resistance of a first engagement device, with the first engagement device in a disengaged state, A specific-slip hydraulic pressure control section sets a hydraulic pressure to be supplied to a second engagement device such that a transfer torque capacity of the second engagement device becomes a capacity corresponding to estimated input torque, which is determined as a difference between output torque of the rotary electric machine and the estimated loss torque. This is performed in the event that specific slip control, in which the second engagement device is controlled to a slip state from a state with the first engagement device in the disengaged state and with the second engagement device in a completely engaged state, is executed. | 03-08-2012 |
20120078457 | CONTROL DEVICE - A control device configured with a first control portion controls an engagement pressure of a first engagement device to make a rotational speed of the input member equal to a predetermined rotational speed during the specific electric power generation control. A second control portion controls an engagement pressure of the second engagement device in such a manner as to make a transfer torque capacity of the second engagement device equal to a predetermined transfer torque capacity during the specific electric power generation control. Another control portion determines a target rotational speed in such a manner as to maintain a state in which an electric power generation amount achieved by the rotating electrical machine coincides with a predetermined target electric power generation amount, in accordance with a magnitude of a differential torque as a difference between a torque transmitted via the first engagement device. | 03-29-2012 |