摘要:
PROBLEM TO BE SOLVED: To provide a controller for controlling the reduction in determination accuracy due to oscillation superimposed on a detection value of rotation speed when determining whether a second engagement device has entered a direct engagement state or not based on a difference in rotation speed between engagement members of the second engagement device.SOLUTION: The controller controls a driving device for vehicle with a first engagement device, a rotating electrical machine, a second engagement device, and wheels, which are installed in this order from an internal combustion engine side. The controller is provided with a direct engagement determining section which determines a direct engagement state based on a difference in rotation speed of the second engagement device when the drive power is transmitted between the internal combustion engine and the wheels, while the first engagement device is in an engagement state and the second engagement device in the directly engagement state. The direct engagement determining section uses the rotation speed obtained by reducing oscillation of a specific frequency band including a resonance frequency of the driving device for vehicle, which appears on the detection value of the rotation speed.
摘要:
PROBLEM TO BE SOLVED: To provide a control device capable of suppressing occurrence of a torque step when a second friction engagement device moves from a slip engagement state to a direct coupling engagement state, irrespective of errors in the torque of an internal combustion engine or the transmission torque capacity of a first friction engagement device.SOLUTION: The control device for a driving device for a vehicle includes, on a power transmission path connecting the internal combustion engine and the wheels: the first friction engagement device; a rotating electric device 12; and a second friction engagement device CL2. In a state in which the torque of the internal combustion engine is transmitted to the wheels in the slip engagement state of the second friction engagement device CL2, the control device performs rotation state control for controlling the rotation state of the rotating electric device 12 to becomes a target rotation state. Also, while the second friction engagement device CL2 is transitioned from the slip engagement state to a direct coupling engagement state, the control device performs hydraulic adjustment control in order to control a hydraulic pressure Pc2 supplied to the second friction engagement device CL2 in the slip engagement state, based on the torque of the rotating electric device 12 whose rotation state is being controlled.
摘要:
PROBLEM TO BE SOLVED: To provide a controller which when determining a target rotational speed of a rotating electrical machine based on a rotational speed of the wheel side, of an output-side engagement device and performing rotational speed control, can suppress deterioration in stability of a rotational speed control system and an increase in manipulated variables due to vibration superimposed on the rotational speed of the wheel side.SOLUTION: The controller for controlling a driving device for a vehicle in which the output-side engagement device is disposed between the rotating electrical machine and a wheel, includes a rotational speed control part which determines the target rotational speed based on an output rotational speed and performs an output-based rotational speed control for controlling a rotational speed of the rotating electrical machine when the output-side engagement device is in a sliding engagement state, wherein the rotational speed control part uses the rotational speed in which the vibrations of a prescribed frequency band including a resonance frequency of the driving device for a vehicle expressed on a detection value of the rotational speed are reduced, as the output rotational speed.
摘要:
PROBLEM TO BE SOLVED: To provide a control device that can effectively suppress the occurrence of overshoot of rotation speed of an internal combustion engine and a rotary electric machine after transition of directly connecting of an engagement device for separation following start of the internal combustion engine.SOLUTION: The control device of the vehicular driving device is provided in order of an engagement device for separation and the rotary electric machine on a power transmission path that connects the internal combustion engine and the wheel. This control device includes: a start control part that starts the internal combustion engine by torque of the rotary electric machine transmitted through the engagement device for separation when starting of the internal combustion engine is requested in a stopped state of the internal combustion engine; an engagement control part that shifts the engagement device for separation from a slip engagement state to a direct engagement state after start of ignition of the internal combustion engine; and a suppression command output part that outputs the torque suppression command to make the internal combustion engine output the torque suppressed to an internal combustion engine requested output torque corresponding to the requested driving force in a prescribed period including a directly connected transition of the engagement device for the separation.
摘要:
PROBLEM TO BE SOLVED: To provide a control device that can promptly achieve a transmitted state of proper magnitude of the torque corresponding to the requested torque to the wheel after a second frictional engagement device begins slipping.SOLUTION: There is provided the control device of a vehicle drive device in which a first frictional engagement device, a rotating electric machine, and a second frictional engagement device are installed in this order on a power transmission path that connects an internal combustion engine and a wheel. The control device gradually decreases the supply oil pressure to the second frictional engagement device, when changing from the state that the driving force is transmitted between the rotating electric machine and the wheel to the state that the driving force is transmitted at least between the internal combustion engine and the wheel. When determining the start of slipping of the second frictional engagement device, the control device performs control to increases the supply oil pressure to the second frictional engagement device only by a prescribed oil pressure to the supply oil pressure of the slipping start at the determination time.
摘要:
PROBLEM TO BE SOLVED: To attain a controller that can accurately determine transition when the engagement state of a second engagement device is changed.SOLUTION: The controller includes: an objective rotary speed difference derivation section 43 in which each of detection results of a first rotary speed detector 91 and a second rotary speed detector 92 is converted into a rotary speed when they are transmitted to a specific rotary member 60, on the basis of the transmission gear ratio of a transmission 13, and a difference between two rotary speeds obtained from the conversion is derived as an objective rotary speed difference; and a transition determination section 44 that executes at least either of first transition determination for determining a transition to a slip engagement state from a direct engagement state of a second engagement device CM on the basis of comparison of the objective rotary speed difference with difference rotary threshold, and second transition determination for determining a transition to the direct engagement state from the slip engagement state of the second engagement device CM. The transition determination section 44 sets the difference rotary threshold to different values according to the transmission gear ratio of the transmission 13.
摘要:
PROBLEM TO BE SOLVED: To provide a control device that can properly and at an early time, achieve a slip state of a second engagement device, when controlling the second engagement device to the slip state while a first engagement device is under a released state.SOLUTION: There is provided the control device 3 for controlling a drive device 1 wherein the first engagement device CS, a rotary electric machine 12, and the second engagement device C1 are provided in this order on a power transmission path connecting an input member I and an output member O. The control device includes: a loss torque estimation part 47 which derives an estimated loss torque which is an estimated value of a loss torque caused by the drag resistance of the first engagement device CS when the first engagement device CS is in a released state; and a specific slip time hydraulic control part 45b which, when the first engagement device CS is in a released state and a specific slip control is executed to make the second engagement device C1 in a slip state, sets a supply hydraulic pressure to the second engagement device C1 so that a transmission torque capacity of the second engagement device C1 becomes the capacity corresponding to an estimated input torque determined as a difference between the output torque of the rotary electric machine 12 and the estimated loss torque.
摘要:
PROBLEM TO BE SOLVED: To carry out current control of a solenoid more properly.SOLUTION: When a command current Ir used for current feedback control of a solenoid of a linear solenoid valve is set within a range of an upper limit current Irmax, the upper limit current Irmax is changed from a first upper limit current Irmax1 to a second upper limit current Irmax2 which is smaller than the first upper limit current Irmax1 according to voltage reduction of a battery which supplies power to the solenoid (S120). Namely, when the voltage reduction of the battery has not occurred, the command current Ir is set within a range of the first upper limit current Irmax1, and when the voltage reduction of the battery has occurred, the command current Ir is set within a range of the second upper limit current Irmax2 which is smaller than the first upper limit current Irmax1 (S110-S130). Thereby, the command current Ir is limited into the range of a smaller upper limit current Irmax according to the voltage reduction of the battery, and the deviation between the command current Ir of the solenoid and an actual current Ifb is suppressed from becoming excessively large.
摘要:
PROBLEM TO BE SOLVED: To promptly detect occurrence of abnormality in a controller of a solenoid valve.SOLUTION: In a control system of feedback control of an actual current Ifb flowing to a solenoid of a linear solenoid valve SLT, with the establishment of a first condition that the state of not including an actual current change amount ΔIfb from the first-order lag time Tref1 predetermined as a time constant Tx1 indicating responsiveness of a first-order lag before in a first normal range determined with a command current change amount ΔIr from the first-order lag time Tref1 before as a reference continues over the first-order lag time Tref1 as a condition (S100-S140), it is determined that abnormality is generated in the control system (S240). Thus, the generation of abnormality is detected more promptly compared to the determination of abnormality when an integrated value of a deviation of a command current Ir and the actual current Ifb or the like exceeds a threshold.
摘要:
PROBLEM TO BE SOLVED: To achieve a control device capable of suppressing an occurrence of a torque step caused when a second friction engagement device is transitioned from a slip engagement state to a direct engagement state irrespective of errors in transmission torque capacity of a first friction engagement device or in torque of an internal combustion engine.SOLUTION: There is provided the control device which controls, as a control target, a vehicle drive device including the first friction engagement device, a rotary electric machine 12 and a second friction engagement device CL2 arranged in this order in a motive-power transmission route connecting between the internal combustion engine and wheels. The control device is configured to execute rotational state control in which a rotational state of the rotary electric machine 12 is controlled so as to establish a target rotational state with the second friction engagement device CL2 in a slip engagement state, and hydraulic pressure regulation control in which a hydraulic pressure Pc2 supplied to the second friction engagement device CL2 is controlled on the basis of torque of the rotary electric machine produced during the rotational state control after the first friction engagement device is transitioned to a direct engagement state while the second friction engagement device CL2 is transitioned from the slip engagement state to a direct engagement state.