摘要:
A vehicle comprises a motor (4) and a wet clutch (12) for transmission of torque output of the motor to road wheels of the vehicle and transmission of road load from the road wheels to the motor (4). The wet clutch is disengaged in response to a clutch disengagement control signal. Accounting for clutch drag state of the wet clutch, a controller (8) selects one out of various values as threshold (Voff). The controller (8) determines that the wet clutch be disengaged when a parameter indicative of the actual vehicle speed has a predetermined relationship with the threshold. The controller (20) generates the clutch disengagement control signal upon determining that the wet clutch be disengaged.
摘要:
A vehicle driving force control apparatus is configured to provide a vehicle drive force control apparatus that can expand the operating region within which an electric motor can be driven in a stable manner. The output of an engine is delivered to the main drive wheels through a transmission and also to an electric generator. The output voltage of the electric generator is supplied to the electric motor and the output of the electric motor drives the subordinate drive wheels. When it is determined that the generator output voltage will not be sufficient to meet the requirement of the electric motor, the amount of acceleration slippage allowed at the left and front wheels is increased.
摘要:
A vehicle driving force control apparatus is configured to provide a vehicle drive force control apparatus that can expand the operating region within which an electric motor can be driven in a stable manner. The output of an engine is delivered to the main drive wheels through a transmission and also to an electric generator. The output voltage of the electric generator is supplied to the electric motor and the output of the electric motor drives the subordinate drive wheels. When it is determined that the generator output voltage will not be sufficient to meet the requirement of the electric motor, the amount of acceleration slippage allowed at the left and front wheels is increased.
摘要:
A vehicle drive force control apparatus is provided that can stabilize the output of the electric motor even if the engine rotational speed experiences an acute change. The output of an engine is delivered to the left and right front wheels through a transmission and also to an electric generator. The output voltage of the electric generator is supplied to an electric motor and the output of the electric motor drives the left and right rear wheels. The drive force control device predicts if the rotational speed of the engine will decrease or increase acutely based on the upshifting and downshifting of the transmission and adjusts the field current of the electric generator up or down before the acute change in the engine rotational speed occurs.
摘要:
A vehicle drive force control apparatus is provided that can stabilize the output of the electric motor even if the engine rotational speed experiences an acute change. The output of an engine is delivered to the left and right front wheels through a transmission and also to an electric generator. The output voltage of the electric generator is supplied to an electric motor and the output of the electric motor drives the left and right rear wheels. The drive force control device predicts if the rotational speed of the engine will decrease or increase acutely based on the upshifting and downshifting of the transmission and adjusts the field current of the electric generator up or down before the acute change in the engine rotational speed occurs.
摘要:
Bolt holes 23 are provided for press fitting and securing bolts 5 for mounting a brake rotor 4 to a flange 22 of a hub wheel. Each bolt hole 23 includes widening portions 28a, 28b, which are tapered to widen from the center portion of the bolt hole 23 toward a brake rotor mounting surface 25 of the flange 22. The widening portions 28a, 28b are formed by two tapered surfaces having different taper angles with respect to the axis of the bolt hole 23 from an opening rim of the bolt hole toward the inside. The taper angle of an outer tapered surface connected to the opening rim is greater than the taper angle of an inner tapered surface connected to the outer tapered surface. In machining the hub wheel 2 configured as described above, the brake rotor mounting surface 25 is finished after machining the bolt holes 23.
摘要:
A telephone applicable to PSTN and IP network having functions of obtaining, when a call is originated by entering a PSTN telephone number, an IP network telephone number of a destination telephone corresponding to the PSTN telephone number from a telephone number translation server connected to the IP network, obtaining IP address information of the destination telephone corresponding to the IP network telephone number from a call agent connected to the IP network, establishing call connection with the destination telephone via the IP network by using the IP address information, and establishing call connection with the destination telephone via the PSTN if the IP network telephone number of the destination telephone cannot be obtained from the telephone number translation server.
摘要:
An apparatus provides protection to an electric traction motor of a vehicle. The vehicle has a first powertrain and a second powertrain. The first powertrain includes an engine and it is coupled with a first set of road wheels. The second powertrain includes the electric traction motor and it is coupled with a second set of road wheels. The apparatus comprises a revolution speed sensor operatively associated with the electric traction motor. The apparatus also comprises at least one controller. The controller includes control logic for modifying operation of the vehicle in response to monitoring the revolution speed sensor to restrain the vehicle speed from increasing in such a manner as to limit revolution speed of the electric traction motor to revolution speed values below an allowable upper revolution speed limit.
摘要:
An electric motor diagnosing apparatus is provided in a vehicle having a generator driven by a drive torque of a drive source, an electric motor driven by electric power supplied from the generator, and a wheel driven by the electric motor. The electric motor diagnosing apparatus comprises a counterelectromotive force determining section and an electric motor diagnosing section. The counterelectromotive force determining section determines whether a voltage of electric power supplied from the generator to the electric motor is greater than an induced voltage of a counterelectromotive force of the electric motor. The electric motor diagnosing section drives the electric motor by controlling the generator to supply the electric power to the electric motor, and determines whether the electric motor is rotating, upon determining that the voltage of the electric power supplied from the generator to the electric motor is greater than the electric motor induced voltage.
摘要:
A vehicle powertrain includes an electric motor (4) and a clutch (12) between the electric motor and a motor driven road wheel (3L, 3R). Powertrain play between the electric motor (4) and the road wheel is eliminated upon determination that powertrain play elimination (PPE) is needed for motor torque transmission to the motor driven road wheel. The PPE includes controlling engagement of the clutch and regulating the electric motor to produce a very small amount of motor torque required for PPE.