摘要:
In the compound rotary encoder of this invention, an absolute signal representing the upper m bits of a rotation angle signal, and an icreametal signal used for detecting the lower bits of the rotation angle signal are detected to obtain more detailed rotation angle information. Moreover, the rotation angle obtained by counting the increamental signal closely matches that obtained from the absolute signal, assuring the detection of the rotation angle with high resolution and precision. Since a rotating disk has only m bits of absolute code pattern, the rotary encoder can be small. This permits the absolute code pattern to have greater diametrical width so that a large output of the absolute signal can be stably obtained. On the other hand, the number of rotations can be obtained by counting and compensating a standard position signals. Since the rotary disk has the patterns both for detecting the standard position signal and for detecting the rotation angle, this too allows the rotary encoder to be small.
摘要:
A power output apparatus (20) of the present invention includes a clutch motor (30), an assist motor (40), an engine (50), and a controller (80) for controlling the clutch motor (30) and the assist motor (40). Auxiliary machinery driven by the rotation of a crankshaft (56), such as a cooling pump (104) and a P/S pump (106), are connected directly or via a belt (102) to a crankshaft (56B) of the engine (50). When the assist motor (40) rotates a drive shaft (22) only with electric power stored in a battery (94) under the non-operating condition of the engine (50), the clutch motor (30) applies a torque of rotational motion TST to the crankshaft (56) to rotate the crankshaft (56) at a predetermined revolving speed. This structure allows the crankshaft (56) to be rotated even when the engine (50) is at a stop, thereby supplying the required power to drive the auxiliary machinery.
摘要:
A power output apparatus (20) of the present invention includes a clutch motor (30), an assist motor (40), and a controller (80) for controlling the clutch motor (30) and the assist motor (40). The clutch motor (30) includes an outer rotor (32) linked with a crankshaft (56) of a gasoline engine (50) and an inner rotor (34) connecting with a drive shaft (22). The assist motor (40) includes a rotor (42) connecting with the drive shaft (22). A control CPU (90) of the controller (80) controls a first driving circuit (91) to make the clutch motor (30) carry out power operation, so that the drive shaft (22) is rotated at a revolving speed higher than that of the crankshaft (56). The control CPU (90) also controls a second driving circuit (92) to make the assist motor (40) carry out regenerative operation. The electric power regenerated by the assist motor (40) is supplied to the clutch motor (30) to cover the electric power consumed by the clutch motor (30). The power output apparatus (20) of the invention transmits or utilizes the power generated by the gasoline engine (50) at a high efficiency and enables the drive shaft (22) to rotate at a revolving speed higher than that of the crankshaft (56).
摘要:
A power output apparatus (20) of the present invention includes a clutch motor (30), an assist motor (40), and a controller (80) for controlling the clutch motor (30) and the assist motor (40). The clutch motor (30) includes an outer rotor (32) linked with a crankshaft (56) of a gasoline engine (50) and an inner rotor (34) connecting with a drive shaft (22). The assist motor (40) includes a rotor (42) connecting with the drive shaft (22). When the residual capacity of a battery (94) is less than an allowable minimum value, a control CPU (90) of the controller (80) controls a first driving circuit (91) to enable the clutch motor (30) to carry out the power operation and apply a first torque to the drive shaft (22) in the direction of rotation of the drive shaft (22). The control CPU (90) concurrently controls a second driving circuit (92) to enable the assist motor (40) to carry out the regenerative operation and apply a second torque to the drive shaft (22) in the reverse of the rotation of the drive shaft (22). The second torque is substantially equal in magnitude but opposite in direction to the first torque. The electric power regenerated by the assist motor (40) is supplied to the battery (94) to supplement the electric power of the battery (94). The power output apparatus (20) of the invention can thus make the torque output to the drive shaft (22) approximately equal to zero.
摘要:
A power output apparatus (20) includes an engine (50), a clutch motor (30) connecting with a crankshaft (56), an assist motor (40) connecting with a drive shaft (22), and a controller (80) for controlling the clutch motor (30) and the assist motor (40). When an electrical angle of the rotors in the clutch motor (30) is equal to .pi./2, a constant current is made to flow through three-phase coils (36) of the clutch motor (30) in order to enable a torque equal to or greater than a maximum torque ripple of the engine (50) to be applied from the clutch motor (30) to a drive shaft (22) and the crankshaft (56). This locks up an outer rotor (32) and an inner rotor (34) of the clutch motor (30). This structure enables the torque and rotation of the engine (50) to be directly transmitted to the drive shaft (22) at a high efficiency.
摘要:
A power output apparatus 20 includes an engine 50, a clutch motor 30 having rotors 31 and 33 respectively linked with a crankshaft 56 and a drive shaft 22, an assist motor 40 attached to a rotor-rotating shaft 38, a first clutch 45 for connecting and disconnecting the rotor-rotating shaft 38 to and from the crankshaft 56, a second clutch 46 for connecting and disconnecting the rotor-rotating shaft 38 to and from the drive shaft 22, and a controller 80 for controlling the motors 30 and 40. The controller 80 operates the clutches 45 and 46 according to the states of the engine 50 and the drive shaft 22 and changes the connection of the rotor-rotating shaft 38, so as to enable power output from the engine 50 to be efficiently converted by the motors 30 and 40 and output to the drive shaft 22.
摘要:
A power output apparatus (20) of the present invention includes a clutch motor (30), an assist motor (40), and a controller (80) for controlling the clutch motor (30) and the assist motor (40). The clutch motor (30) includes an outer rotor (32) linked with a crankshaft (56) of a gasoline engine (50) and an inner rotor (34) connecting with a drive shaft (22). The assist motor (40) includes a rotor (42) connecting with the drive shaft (22). An electric current flowing through three-phase coils (36) in the clutch motor (30) enables the outer rotor (32) to be coupled with the inner rotor (34) with a certain slip. Electrical energy corresponding to the certain slip is recovered as an electric power via a first driving circuit (91). The assist motor (40) is controlled with the electric power via a second driving circuit (92) so as to apply a torque to the drive shaft (22). The power output apparatus (20) of the invention can transmit the power generated by the gasoline engine (50) to the drive shaft (22) at a high efficiency and produce a torque in the direction of rotation of the crankshaft (56).
摘要:
A power output apparatus (20) of the present invention includes a clutch motor (30), an assist motor (40), and a controller (80) for controlling the clutch motor (30) and the assist motor (40). The clutch motor (30) includes an outer rotor (32) linked with a crankshaft (56) of a gasoline engine (50) and an inner rotor (34) connecting with a drive shaft (22). The assist motor (40) includes a rotor (42) connecting with the drive shaft (22). A control CPU (90) of the controller (80) controls a first driving circuit (91) to enable the clutch motor (30) to carry out the regenerative operation. The clutch motor (30) accordingly regenerates energy corresponding to a slip between the outer rotor (32) and the inner rotor (34) as electric power. The control CPU (90) then controls a second driving circuit (92) to enable the assist motor (40) to carry out the power operation with the electric power regenerated by the clutch motor (30), thereby rotating the drive shaft (22) in the reverse of the rotation of the crankshaft (56). The power output apparatus (20) of the invention thus constructed can transmit or utilize the power generated by the gasoline engine (50) at a high efficiency and enable the drive shaft (22) to rotate in the reverse of the rotation of the crankshaft (56).
摘要:
Electric motor coils are electrically connected to a power device in an inverter. A conductor for supplying a drive current to the motor coils includes a heat radiating area or other heat radiating member in the wiring path. Thus, the heat from the electric motor is radiated from the conductor in the wiring path. The power device and other components of the inverter can be prevented from being thermally damaged or degraded by the heat transmitted from the motor coils to the inverter through the conductor having higher heat conductivity.
摘要:
A power transmitting apparatus (20) attached to a crankshaft (56) of an engine (50) includes a clutch motor (30), an assist motor (40), and a controller (80) for controlling the clutch motor (30) and the assist motor (40). When detecting an ignition switch in a starter position, the controller (80) makes a constant current flow through three-phase coils (44) of the assist motor (40) to fix a drive shaft (22) and makes a current flow through three-phase coils (36) of the clutch motor (30) to enable the clutch motor (30) to apply a starter torque TST to the crankshaft (56). This results in cranking the crankshaft (56). Concurrently with the cranking process, fuel injection into the engine (50) and spark ignition are controlled to start the engine (50).