Patent application number | Description | Published |
20120091838 | COOLING STRUCTURE FOR ROTARY ELECTRIC MACHINE - A cooling structure for a rotary electric machine uses coolant to cool coil end portions that protrude outward, one from each end surface of a stator core, in a stator that includes a stator core and coils that are wound in a circumferential direction of the stator core. This cooling structure includes a lead side cover member that covers a lead side coil end portion to which a lead wire that supplies electricity to the coils is connected, and forms a first coolant chamber within which coolant is stored; and a non-lead side cover member that covers a non-lead side coil end portion positioned opposite the lead side coil end portion in the axial direction, and forms a second coolant chamber within which coolant is stored. A coolant communicating path is provided that communicates the first and second coolant chambers in a manner that enables coolant to flow therebetween. | 04-19-2012 |
20120126642 | ELECTRIC MOTOR - An electric motor has a rotor, stator, and covers. A stator coil is a pre-wound coil inserted into slots of a stator core from its inner side. A no-lead-wire side coil end portion of the stator coil protrudes radially inward. A no-lead-wire side coolant chamber is liquid-tightly defined by the cover covering the no-lead-wire side coil end portion and a seal plate(s) that is attached from or on a radially inner side of the stator core so as to cover an opening between the inner peripheral edge of the cover and the inner peripheral edge of the stator core. | 05-24-2012 |
20120242178 | ROTATING ELECTRICAL MACHINE - A rotating electrical machine includes: a rotor whose axis is disposed in a horizontal direction, a stator core that is disposed in an outside of the rotor, a coil that is wound in a slot which is provided along the axial direction of the stator core, whose end sections of windings protrude from a front end and a rear end of the stator core in the axial direction as coil ends and whose one end of a winding wire is drawn as a lead wire to the outside, and an annular cooling jacket. The cooling jacket has an opening through which the lead wire of the coil is drawn to the outside and the opening is provided at a predetermined height position above an upper end of the coil end as a reference position. | 09-27-2012 |
20130166126 | VEHICLE CONTROL SYSTEM - A vehicle control system includes: a power unit including an engine and a rotating electrical machine; a power supply apparatus connected to the rotating electrical machine; an oil pump unit including a mechanical oil pump and an electric oil pump for cooling the rotating electrical machine; and a control apparatus. The control apparatus is constituted by an EOP idling determination unit that determines an idling state of the electric oil pump, and an engine starting processing unit that performs processing to drive the mechanical oil pump by starting the engine in accordance with the determination of the EOP idling determination unit. | 06-27-2013 |
20130173104 | VEHICLE CONTROL SYSTEM AND VEHICLE CONTROL METHOD - A vehicle control system is configured to include a motive power unit that includes an engine and a rotating electrical machine, a power supply device that is connected to the rotating electrical machine, a pump unit that includes an electric oil pump and a mechanical oil pump for cooling the rotating electrical machine, and a control device. The control device is configured to include a carrier frequency determination unit, a rotating electrical machine determination unit, a vehicle required traveling state determination unit, a motive power unit operation mode determination unit that makes a determination on the operation mode of the motive power unit, and an EOP operation control unit that controls the operation of the electric oil pump on the basis of these determinations. | 07-04-2013 |
20130213607 | ROTATING ELECTRICAL MACHINE COOLING SYSTEM - A rotating electrical machine cooling system includes a cooling structure for a rotating electrical machine that is mounted on a hybrid vehicle, and a controller. The cooling structure includes a coolant discharge channel and a coolant supply channel through which a coolant is circulated between an oil pump unit and the interior of a case body that includes the rotating electrical machine therein. The cooling structure further includes a bypass flow channel that connects the oil pump unit and the interior of the case body with each other, and a relief valve that is provided in the bypass flow channel. The oil pump unit includes a mechanical oil pump and an electric oil pump. | 08-22-2013 |
20130221772 | COOLING STRUCTURE OF ROTOR FOR ROTARY ELECTRIC MACHINE, AND ROTARY ELECTRIC MACHINE - A cooling structure of a rotor for a rotary electric machine includes: a rotatable shaft that is configured to supply coolant that flows inside the shaft to outside the shaft; a rotor core that is fitted onto the shaft and fixed thereto, and has a coolant flow path for flowing the coolant, in an axial direction of the rotary electric machine, that is supplied from the shaft, and is formed of a plurality of magnetic plates stacked together in the axial direction of the rotary electric machine; and a coolant impermeable nonmagnetic member that is provided in the rotor core near an inner circumferential surface on a radially outer side in a radial direction of the rotor core, of the inner circumferential surface of the coolant flow path. | 08-29-2013 |
20140058599 | CONTROL APPARATUS AND CONTROL METHOD OF MOTIVE POWER APPARATUS FOR HYBRID VEHICLE - In a control of a motive power apparatus for a hybrid vehicle, the coil temperatures of first and second rotary electric machines and an air pressure index value are acquired, and upper limit values of the outputs of the machines are determined on the basis of the values acquired. If the output of one of the machines is restricted by the determined upper limit value of the output, the output of the other is increased. Alternatively, the upper limit values of the outputs of rotary electric machines are determined by applying the acquired coil temperatures to a relation between the coil temperature and the upper limit value of the output which relation is set for each air pressure index value. If the output of one of the first and the second rotary electric machines is restrained by the determined upper limit values, the output of the other is increased. | 02-27-2014 |
20140125165 | COOLING STRUCTURE OF ROTARY ELECTRIC MACHINE - A cooling structure of a rotary electric machine ( | 05-08-2014 |
20140236410 | CONTROL DEVICE FOR HYBRID VEHICLE - A control device for a hybrid vehicle, including a mode whereby the vehicle runs using a motor only, and a mode whereby the vehicle uses both the motor and an engine. When the motor temperature of an MG( | 08-21-2014 |
20150051768 | VEHICLE CONTROL SYSTEM - A vehicle control system includes: a power unit including an electric rotary machine; an electric coolant pump configured to circulate a coolant that cools the electric rotary machine; and a control unit configured to operate the electric coolant pump based on a condition that a temperature of the electric rotary machine is equal to or higher than a predetermined operation threshold temperature, and a condition that an output of the electric rotary machine is equal to or higher than a predetermined operation threshold output. | 02-19-2015 |