33results about How to "Limited electrical power" patented technology

The object of the present invention is to provide a fuel cell system enabling reliable startup thereof, even below the freezing point. The fuel cell system 1 is provided with a startup electric power calculation portion 71 for calculating electric power required for allowing an auxiliary device 50 to startup the fuel cell; an available electric power calculation portion 72 calculating the available electric power of the high voltage battery 22; and an auxiliary device electric power control means 73 for judging whether the available electric power exceeds the startup electric power, supplying electric power to the auxiliary device 50 to startup the fuel cell 10 when the available electric power is greater than the startup electric power, and cancelling startup of the fuel cell when the available electric power is not greater than the startup electric power.

A first motor generator-control unit (MG1-ECU) and a second motor generator-control unit (MG2-ECU) are provided independently for respective motor generators. The MG2-ECU performs electric power balance control by correcting an MG2 torque command value as required, so that the sum of the MG1 electric power and the MG2 electric power is within a range of allowable input / output electric power of a DC power supply. The electric power balance control is performed using an estimate of the MG1 electric power based on data obtained by the MG1-ECU. The estimate is determined so that a communication delay time between the MG1-ECU and the MG2-ECU is corrected. In this way, the electric power balance control can be performed appropriately for restricting, within a predetermined range, the total input / output electric power of the electric motors as a whole of a hybrid vehicle mounted with a plurality of motor generators (electric motors).

A method for controlling a hybrid powertrain system includes the steps of determining a first power state of the hybrid powertrain system, limiting electrical power generated by a generator to the minimum of the rated power limit of the generator and the first power state, when the first power state is greater than zero, and limiting the electrical power generated by the generator to zero, and limiting the power limit of an electric machine during generating to a first operating condition of the hybrid powertrain system, when the first power state is less than or equal to zero, to provide over-charge protection to the battery. The method further includes steps that provide over-discharge protection to the battery.

An operation switch sends an ON signal to a control processor indicating the operation switch is triggered by a user. A magnetic sensor sends a sensor signal to the control processor based on a displacement of a chip rod in a rearward direction. In the case where the sensor signal has not yet been sent, the control processor performs a control in a first mode where a brushless DC motor is not driven. In the case where sensor signal is sent, control processor performs a control in a second mode wherein the brushless DC motor is driven. An output in the first mode is lower than in the second mode. Because of this manner of construction, even if an ON input is triggered and held by the user, electric power is conserved while the operation switch is switched on and a hexagonal nut is not fastened, improving power consumption efficiency.

A interaction device includes a touch-sensitive surface which generates input data when the touch-sensitive surface is in contact with an actuator, a frame fixed to a periphery of the touch-sensitive surface, an actuator which generates a reaction force as a function of the input data, and a support to which the actuator is coupled. The frame and the touch-sensitive surface are arranged to form a rigid assembly which has a resonant frequency of a few hundred Hertz. The actuator is directly coupled to the frame to displace the rigid assembly relative to the support, and the resonant frequency of the actuator is substantially equal to the resonant frequency of the rigid assembly.

To provide a power converter equipped with a current detector which is small and can carry out highly accurate current detection, in the power converter equipped with a power module 16 having a power controlling semiconductor element 7 disposed on the power module base 27 with a ceramic substrate 28 interposed, and a control unit 26 for controlling the operation of the power controlling semiconductor element 7, a current detector 40 having a magnetic detecting unit 47 which is disposed in the detection conductor 11, electrically connected to the power controlling semiconductor element 7 and disposed on the power module base 27 with the ceramic substrate 28 interposed, and has a magnetic detecting semiconductor element 43 electrically connected to the control unit 26 is provided in the power module 16; and relative distance between the detection conductor 11 and the power module base 27 is larger than the relative distance between the current detection electrode 42 and the power module base 27.

A power control device that controls electric power supplied from an external power supply to a vehicle includes: a switching unit that switches a supply voltage value of the external power supply; and a control unit that generates a signal, indicating an allowable current value of the external power supply, to transmit the signal to the vehicle, and that controls the switching unit to thereby control the supply voltage value, wherein the control unit changes the signal and the supply voltage value on the basis of a given electric power command value.

A first motor generator-control unit (MG1-ECU) and a second motor generator-control unit (MG2-ECU) are provided independently for respective motor generators. The MG2-ECU performs electric power balance control by correcting an MG2 torque command value as required, so that the sum of the MG1 electric power and the MG2 electric power is within a range of allowable input / output electric power of a DC power supply. The electric power balance control is performed using an estimate of the MG1 electric power based on data obtained by the MG1-ECU. The estimate is determined so that a communication delay time between the MG1-ECU and the MG2-ECU is corrected. In this way, the electric power balance control can be performed appropriately for restricting, within a predetermined range, the total input / output electric power of the electric motors as a whole of a hybrid vehicle mounted with a plurality of motor generators (electric motors).

A hybrid vehicle includes electrical storage devices, a charging device, a motor generator, a diode, an outlet and a relay. The first electrical storage device stores driving electric power. The charging device charges the first electrical storage device with the user of a power supply outside the vehicle. The motor generator has a power generation function. The second electrical storage device stores electric power that is generated by the motor generator. When electric power is output to a device outside the vehicle from the outlet, the relay limits electric power, which is output from the first electrical storage device, such that electric power stored in the second electrical storage device is output.

In a first condition, the sum of discharging power from a first battery stack and discharging power from a second battery stack is limited in accordance with the sum of a limit value of discharging power from the first battery stack and a limit value of discharging power from the second battery stack. In a second condition, electric power of the battery stacks is limited in accordance with either the limit value of discharging power from the first battery stack or the limit value of discharging power from the second battery stack.

An electrolyser for high-temperature electrolysis configured to operate in an allothermal mode, including an enclosure configured to maintain an electrolytic bath under high or very high pressure of several tens of bars, in which at least one electrolysis plate is arranged, and a heater internal to the enclosure. The electrolysis plate includes a plurality of electrolysis cells lying side by side in substantially one same plane, each electrolysis cell including an anode and a cathode. The heater uses a heat-carrier fluid.

A position detection system that does not require calibration measurement to be performed in advance and reduces the work required for detecting a position and so on is provided. The provided position detection system includes a device having a magnetic inductance coil; a drive coil that has a position-calculating frequency near a resonant frequency of the magnetic inductance coil and generates an alternating magnetic field which acts on the magnetic inductance coil; a plurality of magnetic-field sensors that is disposed outside the operating range of the device and detects an induced magnetic field generated by the magnetic inductance coil; amplitude-component detection section for detecting amplitude components whose phase is substantially orthogonal to the alternating magnetic field from the outputs of the magnetic sensors acquired by the plurality of magnetic sensors; and position analyzing section for calculating at least one of a position and an orientation of the device on the basis of the amplitude components.

A power control system supplies electric power to a plurality of power consumption devices which are provided to an electric vehicle. This system includes: a high voltage battery which is an electric power supply source; a plurality of device controllers which are provided to the respective power consumption devices and which control operations of the respective power consumption devices; and an overall controller which overall controls the plurality of device controllers. At least one of the device controllers performs an electric power restriction that restricts a consumed electric power in a corresponding power consumption device so as to allow the consumed electric power in the corresponding power consumption device to fall within an electric power allocated by the overall controller while simultaneously maintaining an operation of the corresponding power consumption device stably.

The hybrid vehicle includes an internal combustion engine, a rotary electric machine, an electrical storage device and a controller. The controller is configured to execute output control. An opening degree of the throttle valve is controlled in the output control such that, when a temperature of the electrical storage device is lower than a predetermined temperature, the output of the internal combustion engine is reduced below a predetermined output. The controller is further configured to control the variable valve actuating device such that at least one of a valve lift or valve operating angle of the intake valve at the time when the output control is executed is larger than the corresponding at least one of the valve lift or valve operating angle of the intake valve at the time when the output control is not executed.

An ECU executes a program including the steps of detecting a stroke amount SP of a clutch pedal, a value I of current flowing through a solenoid valve of a normally-closed type provided at a pipe coupling a master cylinder and a clutch release cylinder, and a stroke amount SC of the clutch release cylinder, and permitting performing of idle stop when a condition that the stroke amount SP of the clutch pedal is at least a threshold value SP(1), a condition that stroke amount SC of the clutch release cylinder is at least a threshold value SC(0), and a condition that value I of current flowing through the solenoid valve is not larger than a threshold value I(0) are all satisfied.

A method for determining a constant current limit value by means of which a first current which flows through a battery cell is limited, wherein the constant current limit value is determined on the basis of a first function which specifies a first profile of the first current, which first profile is dependent on a plurality of parameters. The plurality of parameters include a first voltage which is applied between two terminals of the battery cell, a second voltage which specifies a no-load voltage of the battery cell, and a time variable.

A vehicle controller is configured to execute a duty cycle control process of alternately repeating an electric power generation execution period and an electric power generation stop period of an electric generator and controlling a duty cycle, which is a ratio of the electric power generation execution period to a single cycle of repeated cycles, when determining that an anomaly has occurred in a driving circuit. The duty cycle control process includes at least one of two processes, a process of setting the duty cycle to be larger when a member in an overheatable region, in which overheating is possibly performed by the heater, has a low temperature than when the member has a high temperature and a process of setting the duty cycle to be larger when an internal combustion engine has a large intake air amount than when the engine has a small intake air amount.