摘要:
The present invention provides a clutch engaging control method in a hybrid power output device, wherein the device comprises an engine, a first motor, a clutch and a second motor that are connected in sequence, a battery, and a speed reducing mechanism and a drive shaft that are connected to the output end of the second motor; the method comprises: (a) detecting the rotation speed ω2 of the second motor and setting the rotation speed ω2 as the target rotation speed ω0 of the first motor, when the vehicle is driven by the second motor and the engine is required to be started to provide assistance to the second motor; (b) starting the first motor to drive the engine, and controlling the actual rotation speed ω1 of the first motor to be close to the target rotation speed ω0; (c) switching the state of the first motor from a driving motor to a power generator when the actual rotation speed ω1 of the first motor is approximately equal to the target rotation speed ω0; and (d) engaging the clutch. The method can improve the dynamic response time of the engine and suppress impact in the clutch engaging process. The present invention further provides a clutch engaging control system in a hybrid power output device.
摘要:
This invention provides methods for electric vehicle motor control and rotor position detection and fault-tolerant processing. The rotor position signal sampled by the system is compared with the previous rotor position θ0. When there is a sudden change, the current position signal acquired is discarded. Instead, a fault-tolerant processing strategy for use during an error condition is employed where the previous sampled rotor position θ0 is used as a base to determine the corrected current rotor position angle Θ1′. Then the correcting value is used to control the electric motor. Thus, during the motor operation, when the detection of the motor rotor position is erroneous because of a sensor such as a revolver that may be interfered by external conditions such as electromagnetic fields or vibrations or when there is a breakdown in other related hardware components or transmitting circuits, the fault-tolerant processing methods of this invention can effectively prevent the motor from losing control and allow it to maintain its continuity and stability.
摘要:
The present invention provides a clutch engaging control method in a hybrid power output device, wherein the device comprises an engine, a first motor, a clutch and a second motor that are connected in sequence, a battery, and a speed reducing mechanism and a drive shaft that are connected to the output end of the second motor; the method comprises: (a) detecting the rotation speed ω2 of the second motor and setting the rotation speed ω2 as the target rotation speed ω0 of the first motor, when the vehicle is driven by the second motor and the engine is required to be started to provide assistance to the second motor; (b) starting the first motor to drive the engine, and controlling the actual rotation speed ω1 of the first motor to be close to the target rotation speed ω0; (c) switching the state of the first motor from a driving motor to a power generator when the actual rotation speed ω1 of the first motor is approximately equal to the target rotation speed ω0; and (d) engaging the clutch. The method can improve the dynamic response time of the engine and suppress impact in the clutch engaging process. The present invention further provides a clutch engaging control system in a hybrid power output device.
摘要:
This invention provides methods for electric vehicle motor control and rotor position detection and fault-tolerant processing. The rotor position signal sampled by the system is compared with the previous rotor position θ0. When there is a sudden change, the current position signal acquired is discarded. Instead, a fault-tolerant processing strategy for use during an error condition is employed where the previous sampled rotor position θ0 is used as a base to determine the corrected current rotor position angle Θ1′. Then the correcting value is used to control the electric motor. Thus, during the motor operation, when the detection of the motor rotor position is erroneous because of a sensor such as a revolver that may be interfered by external conditions such as electromagnetic fields or vibrations or when there is a breakdown in other related hardware components or transmitting circuits, the fault-tolerant processing methods of this invention can effectively prevent the motor from losing control and allow it to maintain its continuity and stability.
摘要:
A method of controlling an accelerator of a four-wheel drive electric vehicle comprises the steps of controlling power output of the vehicle by a sum of an output torque of a main drive motor and an output torque an auxiliary drive motor with the output torque of the main drive motor being determined by a position of the accelerator pedal. The output torque T0 of the auxiliary drive motor is determined by: obtaining a torque calculation factor GainAccSum that a cumulative value of the acceleration GainAcc of the accelerator pedal; determining a maximum output torque T of the auxiliary drive motor at a current speed of the vehicle; and calculating the output torque T0 of the auxiliary drive motor varying between 0 and T based on the torque calculation factor GainAccSum and the maximum output torque T of the auxiliary drive motor at the current speed of the vehicle.
摘要:
A method of controlling an accelerator of a four-wheel drive electric vehicle comprises the steps of controlling power output of the vehicle by a sum of an output torque of a main drive motor and an output torque an auxiliary drive motor with the output torque of the main drive motor being determined by a position of the accelerator pedal. The output torque T0 of the auxiliary drive motor is determined by: obtaining a torque calculation factor GainAccSum that a cumulative value of the acceleration GainAcc of the accelerator pedal; determining a maximum output torque T of the auxiliary drive motor at a current speed of the vehicle; and calculating the output torque T0 of the auxiliary drive motor varying between 0 and T based on the torque calculation factor GainAccSum and the maximum output torque T of the auxiliary drive motor at the current speed of the vehicle.
摘要:
The present invention discloses a controllable rectification comprising an inverter (10), a control panel (20) and a drive panel (30). The inverter (10) may comprise three switch element groups connected in parallel. Each switch element group may comprise at least two switch elements connected in parallel. Each switch element may comprise an upper bridge-arm switch and a lower bridge-arm. The control panel (20) may generate a PWM waveform. The drive panel (30) may generate a drive voltage according to the PWM waveform to drive the upper bridge-arm switch and the lower bridge-arm switch of each switch element to conduct or break respectively, and to make the upper bridge-arms of the same switch element group to conduct or break simultaneously, and to make the lower bridge-arms of the same switch element group to conduct or break simultaneously. The present invention further discloses an electric motor comprising the same.