A failure determination circuit includes a switching circuit that receives a signal including an output voltage from a temperature sensor and a first reference voltage and outputs the signal in a time division manner, an A/D conversion circuit that A/D converts an output of the switching circuit, and a first determination circuit, and the first determination circuit determines a failure of the temperature sensor based on a signal based on a first digital signal obtained by A/D converting an output voltage from the temperature sensor by the A/D conversion circuit, a signal based on a second digital signal obtained by A/D converting the first reference voltage by the A/D conversion circuit, and temperature characteristics data based on a change in characteristics of the temperature sensor due to temperature and a change in characteristics of the first reference voltage due to temperature.

A magnet temperature estimation device for a rotating electric machine includes a rotating electric machine configured with a rotor having a magnet and a stator having a coil, a coolant supply part configured to supply a coolant flowing from the stator toward the rotor, and a magnet temperature calculation part configured to calculate a temperature of the magnet using a temperature of a coolant that receives heat from the coil.

Disclosed is a battery cell including an electrode, a housing, a cell interior inside the housing, a temperature sensor, and a heat-conducting part which differs from the electrode, is entirely or partially disposed inside the housing of the battery cell, and is thermally connected to the temperature sensor.

A device for measuring the temperature in the interior of a vehicle is provided. The device includes an interior temperature sensor arranged at and/or in a plug-in end of a plug-in housing. The interior temperature sensor projects beyond the plug-in end of the plug-in housing. The plug-in housing is biased away from a cover element for assuming a defined plug-in position of the plug-in housing when the plug-in end of the plug-in housing is plugged into a receiving space of the latter and the interior temperature sensor is arranged in the through-going opening of the cover element.

A motor assembly includes a shaft, a bearing, at least one fluid channel, a temperature sensor, a lubricant supply pump, and a controller. The bearing defines a bearing interface against which the shaft rotates. The at least one fluid channel is fluidly coupled with the bearing interface. The temperature sensor detects a temperature of the bearing. The lubricant supply pump is fluidly coupled with the at least one fluid channel to transport lubricant from a lubricant supply to the bearing interface via the at least one fluid channel. The controller receives the bearing temperature from the temperature sensor, determines a difference between the bearing temperature and a supply temperature of the lubricant, determines a lubricant flow rate based on the difference, and transmits a control signal to the lubricant supply pump to cause the lubricant supply pump to transport the lubricant to the bearing interface at the lubricant flow rate.

The embodiments relate to a method for detecting the temperature of a fluid flow of a control valve which has an electromagnetic actuator, in which a temperature-sensitive resistor is exposed to the fluid flow, and is integrated into a detection circuit. As a function of the fluid temperature, a primary circuit of the electromagnetic actuator is inductively influenced by the detection circuit.

A server device includes a controller. The controller is configured to acquire temperature information that is information associated with a temperature of a predetermined area inside a vehicle, the predetermined area being configured to store a luggage and the predetermined area being configured to be locked and unlocked. The controller is configured to acquire luggage information that is information on the luggage to be stored in the predetermined area, and determine whether the predetermined area is an environment suitable for storage of the luggage at a scheduled storage time of the luggage based on the luggage information and the temperature information.

A method ascertains a state of a product in a plurality of time periods using a detection unit associated with the product. The method including the following for each of the time periods: setting a configuration of the detection unit at a beginning of the respective time period, the configuration different than a configuration available beforehand, and detecting at least one measured value using the detection unit in the respective time period on the basis of the set configuration.

A method for determining an actual temperature of a coil of an electric machine, includes detecting a voltage in a no-load state of the electric machine; detecting a current strength in an induced short circuit state of the electric machine; calculating an actual stator coil resistance as a function of the voltage detected during the no-load state and the current strength detected during the active short circuit state; and calculating the actual temperature of the coil of the electric machine as a function of the actual stator coil resistance.

A vehicle drive device includes: a casing within which lubricating oil is received; a rotating electrical machine provided within the casing, and including a stator with a coil; a temperature sensor provided within the casing; and a control device that functions as: a coil temperature estimation device executing a first temperature estimation in which correlation with a detected temperature is relatively high, and a second temperature estimation in which the correlation is relatively low; a determination device determining whether or not positional relationship between the temperature sensor and oil level is in a permitted state that permits the first temperature estimation; and a limitation device limiting load factor of the rotating electrical machine based on a result of the first temperature estimation when being in the permitted state, and limiting the load factor based on a result of the second temperature estimation when not being in the permitted state.