摘要:
In a hybrid vehicle 20, when the ECO switch 88 is turned on, an intermittent permissive ceiling speed Vref for permitting an intermittent operation of an engine 22 is set to a second vehicle speed more than a first vehicle speed used on a turn-off condition of the ECO switch 88 (S130). The engine 22 and a motor MG2 are controlled so that a driving power equivalent to a torque demand Tr* is ensured with the intermittent operation of the engine 22 when a vehicle speed V is not more than the intermittent permissive ceiling speed Vref (S250,S270,S200-S230).
摘要:
In a hybrid vehicle 20, when an ECO switch 88 is turned off while an intermittent operation of an engine 22 is prohibited in response to a warm-up demand of the engine 22 according to a cooling water temperature Tw or a heating demand, the engine 22 is autonomously operated at a target rotational speed Ne* derived and set from a normal autonomous rotational speed setting map (Steps 170, S190). When the ECO switch 88 is turned on while the warm-up is demanded, the engine 22 is autonomously operated at the target rotational speed Ne* set based on an ECO mode autonomous rotational speed setting map so as to be not more than the value derived from the normal autonomous rotational speed setting map (Steps 180, S190).
摘要:
In a motor drive control system configured to include a converter capable of stepping up the voltage, when the locked state of MG2 operating as an electric motor does not occur (NO in S130), a voltage command value VHref for the converter output voltage is set according to respective required voltages of MG1 operating as an electric generator and MG2 (S140). In contrast, when the locked state of MG2 occurs (YES in S130), the voltage command value VHref is set to a limit voltage Vlmt or less for limiting the voltage step-up by the converter (S150, S180). When the locked state occurs, the converter output voltage is decreased and accordingly the DC voltage switched by the inverter is lowered, so that a switching loss at the switching device forming a part of the inverter is reduced and the temperature increase due to the heat generation can be suppressed.
摘要:
A control device measures time intervals T1 to T12 from the reference time until when each of the rotational angles θbn1, θbn2 output from each of resolvers becomes n×60 degrees (n=1 to 12, i.e., 60 degrees to 720 degrees). Then, the control device calculates a deviation angle Δθn at each of the rotational angles at the intervals of 60 degrees by calculating T1/T12 to T11/T12 using the measured T1 to T12. By substituting the calculated deviation angle Δθn into an equation, n×60°+Δθn (n=1 to 11), the control device corrects the rotational angles at the intervals of 60 degrees. The control device generates each of drive signals DRV1, DRV2 using each of the corrected rotational angles, and outputs each of the drive signals DRV1, DRV2 to each of inverters. The inverters drive each of AC motors (M1, M2) based on each of the drive signals DRV1, DRV2.
摘要:
A current detection unit starts sampling of a motor current at the timing when the motor current has exceeded a threshold value, and holds a maximum motor current value for each prescribed operation cycle. An abnormality determination unit determines whether the maximum motor current value is greater than the threshold value, and counts the number of times that the maximum motor current value continuously exceeds the threshold value. When the count value has reached at least 3, the abnormality determination unit generates and outputs a detection signal indicating abnormality in the motor current to a relay drive unit and a notification unit. The relay drive unit in receipt of the detection signal generates a signal to turn off the system relays. The notification unit generates and outputs a signal AL to display means outside the power supply apparatus.
摘要:
A control apparatus for a hybrid vehicle includes, as a drive power source, a hybrid system that has an engine and a motor. The control apparatus includes a control unit configured to reduce an output of the hybrid system and maintain or increase an engine rotation speed when a driver performs an accelerator operation and a brake operation simultaneously.
摘要:
An ECU starts an engine when an operation to deactivate the hybrid system has been performed during travel of the hybrid vehicle and then an operation to activate the hybrid system is performed before a hybrid vehicle stops.
摘要:
A control apparatus for a vehicle includes a control unit configured to, when accelerator operation and brake operation are simultaneously performed, execute output reduction control that reduces drive power source output, and configured to perform recovery of the drive power source output, when it becomes impossible to certainly determine presence or absence of the brake operation during execution of the output reduction control.
摘要:
In a motor drive control system configured to include a converter capable of stepping up the voltage, when the locked state of MG2 operating as an electric motor does not occur (NO in S130), a voltage command value VHref for the converter output voltage is set according to respective required voltages of MG1 operating as an electric generator and MG2 (S140). In contrast, when the locked state of MG2 occurs (YES in S130), the voltage command value VHref is set to a limit voltage Vlmt or less for limiting the voltage step-up by the converter (S150, S180). When the locked state occurs, the converter output voltage is decreased and accordingly the DC voltage switched by the inverter is lowered, so that a switching loss at the switching device forming a part of the inverter is reduced and the temperature increase due to the heat generation can be suppressed.
摘要:
In a hybrid vehicle 20, an engine 22, motors MG1 and MG2 are controlled so that vibration due to torque ripple arising in a crank shaft 26 is reduced by torque for a vibration control from the motor MG1 and torque demand Tr* is output to a ring gear shaft 32a when an ECO switch 88 is turned off during a start of an engine 22. When the ECO switch 88 is turned on during the start of an engine 22, the engine 22, motors MG1 and MG2 are controlled so that the torque for a vibration control from the motor MG1 becomes value “0” and the torque demand Tr* is output to the ring gear shaft 32a.