Abstract: A temperature estimation apparatus for a rotating electric machine includes a coolant dissipator, a heat dissipation amount calculator, a coolant temperature calculator, and a temperature calculator. The coolant dissipator is to cool down a coolant by heat exchange with a cooling air outside a rotating electric machine. The heat dissipation amount calculator is to calculate heat dissipation amount of the coolant in the coolant dissipator based on a physical quantity correlating with air speed of the cooling air and a physical quantity correlating with flow rate of the coolant. The coolant temperature calculator is to calculate, based on the heat dissipation amount, temperature of the coolant that has passed through the coolant dissipator. The temperature calculator is to calculate, based on the temperature of the coolant, temperature of the rotating electric machine which the coolant cool down.

Abstract: An electric actuator has a motor, an electricity storing body, a switch, a setting unit, a resetting unit and a setting-off unit. The switch is provided in a supply path for electric power from the electricity storing body to the motor. The switch opens and closes the supply path. The setting unit is operated through receiving a supply of electric power from the electricity storing body in response to an instruction from an operator. The setting unit opens the switch. The resetting unit is operated through r a supply of electric power from the external power supply when the external power supply has been restored from being cut off. The resetting unit closes the switch that is provided in the supply path. The setting-off unit sets off the supply of electric power from the external power supply to the resetting unit after a specific delay time has elapsed.

Abstract: An electric actuator has a switch, a setting unit and a resetting unit. The switch is provided in a supply path of electric power from an electricity storing body to a motor. The switch opens and closes the supply path. The setting unit is operated through receiving a supply of electric power from the electricity storing body in response to an instruction from an operator. The setting unit opens the switch provided in the supply path for electric power from the electricity storing body to the motor. The resetting unit is operated through receiving a supply of electric power from an external power supply when the external power supply has been restored from being cut off. The resetting unit closes the switching unit provided in the supply path of electric power from the electricity storing body to the motor.

Abstract: A motor control system for heating, ventilation, and air conditioning (HVAC) applications is described. The motor control system includes a thermostat and an electronically commutated motor (ECM) coupled to the thermostat. The ECM is configured to retrofit an existing non-ECM electric motor included in an HVAC application and to operate in one of a plurality of HVAC modes. The HVAC modes include at least one of a heating mode, a cooling mode, and a continuous fan mode. The HVAC mode is determined based at least partially on outputs provided by the thermostat.

Abstract: According to one embodiment, a motor control apparatus includes a timer to measure a period in which a job is not executed, a sensor to detect a temperature of a physical object, an acquisition part to acquire time information measured by the timer and temperature information detected by the sensor, and a drive control part that determines a current value of a motor provided in the physical object based on the time information and the temperature information acquired by the acquisition part, and controls the motor current value by applying a voltage level corresponding to the determined current value to a drive element of the motor.

Abstract: A heating, ventilation and air conditioning (HVAC) system is provided. The system includes an integrated motor including a plurality of operating speeds and an input for selecting one of the plurality of operating speeds. The system further includes a system controller and an adjustment module. The adjustment module includes a plurality of operating modes each associated with one of the plurality of operating speeds and the ability to manually vary associations between the plurality of operating modes and the plurality of operating speeds. The adjustment module selects one of the plurality of operating modes on the basis of control commands received from the system controller and setting programmed or manually entered into and stored in the adjustment module and controls the integrated motor according to the operating speed associated with the selected operating mode.

Abstract: A vehicle includes a power source, a motor, and a computing device. The power source provides electrical energy to the motor, and the motor generates rotational motion from the electrical energy received. The computing device is configured to estimate a temperature of the motor in real time based at least in part on a thermal model of the motor. The thermal model includes a plurality of nodes and at least one thermal resistance. Each node represents a region of the motor and each thermal resistance represents a heat transfer path between at least two of the nodes. A method includes solving one or more energy balance equations to determine a temperature change at each node and estimating the temperature of the motor in real time based at least in part on the temperature change at each node and at least one of the thermal resistances in the thermal model.

Abstract: A motor control system for heating, ventilation, and air conditioning (HVAC) applications is described. The motor control system includes a thermostat and an electronically commutated motor (ECM) coupled to the thermostat. The ECM is configured to retrofit an existing non-ECM electric motor included in an HVAC application and to operate in one of a plurality of HVAC modes. The HVAC modes include at least one of a heating mode, a cooling mode, and a continuous fan mode. The HVAC mode is determined based at least partially on outputs provided by the thermostat.

Abstract: The invention relates to a method and arrangement having an electric machine, comprising a stator (4) and a rotor (1) and an infrared temperature sensor, wherein the detection field of the infrared temperature sensor is directed at an outer surface of the rotor (1). The infrared temperature sensor is a thermopile (6) for radiometrically contactlessly detecting a temperature of the rotor (1), the thermopile being arranged in a slot of the stator (4) and being compatible with standard slot-sealing-wedge components of the electric machine with regard to assembly, and thus enables the operational monitoring of the thermal state of an electric machine in a novel manner, such that adapted power states can be achieved.

Abstract: A system for cooling a battery mounted on a vehicle using air within a vehicle, independently of the travelling state of the vehicle. The air within a vehicle compartment is guided to a battery mounted on a vehicle to cool the battery. A controller determines a basic fan speed v of the cooling fan based on a battery temperature and an ambient temperature. Further, the controller calculates an increment ?v of the fan speed in accordance with the vehicle speed and the degree of window opening and determines a final fan speed V according to V=v+?v, to drive the cooling fan. By controlling the fan speed to increase, it is possible to cool the battery even when the base pressure of the inlet-side static pressure of the cooling fan becomes negative pressure compared to when the windows are closed.

Abstract: A motor control system for heating, ventilation, and air conditioning (HVAC) applications is described. The motor control system includes a thermostat and an electronically commutated motor (ECM) coupled to the thermostat. The ECM is configured to retrofit an existing non-ECM electric motor included in an HVAC application and to operate in one of a plurality of HVAC modes. The HVAC modes include at least one of a heating mode, a cooling mode, and a continuous fan mode. The HVAC mode is determined based at least partially on outputs provided by the thermostat.

Abstract: An air movement system including a blower and an external controller operable to receive signals from a sensing device and generate a command based on the received signals. The command includes an address. The system also includes a communication channel coupled to the external controller and configured to communicate the command, and a motor assembly operable to drive the blower. The motor assembly includes a stator and rotor assembly coupled to the blower, and a drive circuit coupled to the stator and rotor assembly. The motor assembly includes a second controller and a memory. The memory includes a set of data having a plurality of addresses and an instruction associated with each address, respectively.

Abstract: An under the counter ice making machine having a top opposite a bottom, a front opposite a back, and two sides that collectively define an interior. A casing defines exterior-most surfaces of the ice machine. An ice bin is mounted inside the casing of the device, wherein a compressor is mounted inside the ice machine and below the ice bin and an evaporator assembly is mounted inside the casing and above the ice bin. A gear motor is operably connected to the evaporator assembly and is also mounted above the ice bin.

Abstract: A coolant temperature controller for a fuel cell vehicle comprises: a housing including first and second inlet ports provided on one side thereof and an exhaust port provided on the other side thereof in a horizontal direction with respect to the first inlet port; a plunger operating portion including an operating plunger for capable of vertical movement between the first and second inlet ports and the exhaust port of the housing to proportionally control degree of opening of the first and second inlet ports; a motor mounted on the top of the plunger operating portion; and a motor shaft connected to the motor and extending from the motor to the bottom of the plunger operating portion to be connected to the operating plunger, wherein the vertical movement of the operating plunger is driven by a rotational force transmitted through the motor shaft as the motor operates. The controller can maintain the coolant at a preset temperature for optimal operation of the fuel cell stack.

Abstract: An integrated solenoid system including a single housing containing a solenoid, a controller and one or more electrical connections. The controller includes temperature compensating means and/or voltage compensating means thereby providing predetermined, substantially constant currents to said solenoid. The housing includes an integral two-part end cover.

Abstract: A vacuum exhaust apparatus includes an oil-sealed rotary pump with a gas inlet for taking a gas into the pump. The gas inlet has a gas inlet flange to join with a flange of a gas inlet pipe for guiding the gas to the pump. An oil supply section connects with the gas inlet pipe and supplies an oil into the gas inlet pipe.

Abstract: Systems and methods for controlling a draft inducer for use with a furnace. The draft inducer includes a fan for moving combustion chamber gases for inducing a draft in the furnace combustion chamber that causes a pressure drop across a heat exchanger. The density of the gases flowing across the heat exchanger and the fan differs from a first operating state of the furnace to a second operating state of the furnace. A motor drives the fan in response to a motor control signal so that different motor speeds result as a function of the density of the gases flowing across the fan. A control circuit generates the motor control signal as a function of a first set of speed/torque curves until a speed signal indicates that the motor has reached a predetermined speed. After the speed signal indicates that the motor has reached the predetermined speed, the control circuit generates the motor control signal as a function of a second set of speed/torque curves.