摘要:
A power output apparatus 110 includes a planetary gear 120 having a planetary carrier 124, a sun gear 121, and a ring gear 122. A crankshaft 156 of an engine 150 is mechanically linked with the planetary carrier 124 and a motor MG1 is linked with the sun gear 121. A controller 180 drives the motor MG1 so as to be kept in a lock-up state to prevent rotation of the output shaft thereof, thereby enabling the power output from the engine 150 to be converted to a desired power and output to a power transmission gear 111 mechanically connected with the ring gear 122. The engine 150 may be driven at any driving point that can output energy identical with the energy output to the ring gear 122. This structure allows the engine 150 to be driven at a desired driving point of highest possible efficiency, thereby enhancing the efficiency of the whole apparatus.
摘要:
A hybrid series vehicle includes an engine (10), a generator (12), a battery (26) and a motor (14). The generator (12) is activated by electricity from the engine (10) so as to drive the motor (14). The battery (26) is charged by the electricity from the generator, being discharged so as to provide a voltage to the motor (14). In other words, the motor (14) is also activated by discharging electricity from the battery (26). There are three modes for activating the motor (14), i.e. a mode for activating the motor (14) only by the battery (26), a mode for activating it only by the generator (12), and a mode for activating it both by the battery (26) and the generator (12). The motor activating modes will be selected depending upon a required motor output. An output voltage of the generator (12) is determined so as to derive the required output according to the selected mode. The generator (12) is of a type which can output a voltage according to a field current. The field current of the generator (12) is controlled so as to obtain the required output voltage.
摘要:
A power output apparatus 110 includes a planetary gear 120 having a planetary carrier 124, a sun gear 121, and a ring gear 122. A crankshaft 156 of an engine 150 is mechanically linked with the planetary carrier 124 and a motor MG1 is linked with the sun gear 121. A controller 180 drives the motor MG1 so as to be kept in a lock-up state to prevent rotation of the output shaft thereof, thereby enabling the power output from the engine 150 to be converted to a desired power and output to a power transmission gear 111 mechanically connected with the ring gear 122. The engine 150 may be driven at any driving point that can output energy identical with the energy output to the ring gear 122. This structure allows the engine 150 to be driven at a desired driving point of highest possible efficiency, thereby enhancing the efficiency of the whole apparatus.
摘要:
A power output apparatus 110 includes a planetary gear 120 having a planetary carrier 124, a sun gear 121, and a ring gear 122. A crankshaft 156 of an engine 150 is mechanically linked with the planetary carrier 124, a first motor MG1 with the sun gear 121, and a second motor MG2 with the ring gear 122. A controller 180 drives the second motor MG2 with electric power regenerated by the first motor MG1 or drives the first motor MG1 with electric power regenerated by the second motor MG2, based on a gear ratio of the sun gear 121 to the ring gear 122 of the planetary gear 120, thereby enabling the power output from the engine 150 to be converted to a desired power and output to a power transmission gear 111 mechanically connected with the ring gear 122. The engine 150 may be driven at any driving point that can output energy identical with the energy output to the ring gear 122. This structure allows the engine 150 to be driven at a desired driving point of highest possible efficiency, thereby enhancing the efficiency of the whole apparatus.
摘要:
The battery current is sampled and accumulated for T seconds (102,104). The obtained accumulated value is used to determine the control target Pg of the generated power. Since the generated power is controlled according to the accumulated current of the battery which fits the characteristic of the battery (14) compared to the charged-and-discharged power, state of charge (SOC) of the battery (14) can be more accurately controlled within the target zone. When the SOC of the battery (14) is initially outside the target zone (116), the SOC is adjusted within the target zone by forcibly discharging (112) or charging (118) the battery (14). The precision of SOC control can be improved compared to when the SOC of the battery (14) is controlled using the charged-and-discharged power.
摘要:
A power output apparatus 110 includes a planetary gear 120 having a planetary carrier 124, a sun gear 121, and a ring gear 122. A crankshaft 156 of an engine 150 is mechanically linked with the planetary carrier 124 and a motor MG1 is linked with the sun gear 121. A controller 180 drives the motor MG1 so as to be kept in a lock-up state to prevent rotation of the output shaft thereof, thereby enabling the power output from the engine 150 to be converted to a desired power and output to a power transmission gear 111 mechanically connected with the ring gear 122. The engine 150 may be driven at any driving point that can output energy identical with the energy output to the ring gear 122. This structure allows the engine 150 to be driven at a desired driving point of highest possible efficiency, thereby enhancing the efficiency of the whole apparatus.
摘要:
A power output apparatus 110 includes a planetary gear 120 having a planetary carrier 124, a sun gear 121, and a ring gear 122. A crankshaft 156 of an engine 150 is mechanically linked with the planetary carrier 124, a first motor MG1 with the sun gear 121, and a second motor MG2 with the ring gear 122. A controller 180 drives the second motor MG2 with electric power regenerated by the first motor MG1 or drives the first motor MG1 with electric power regenerated by the second motor MG2, based on a gear ratio of the sun gear 121 to the ring gear 122 of the planetary gear 120, thereby enabling the power output from the engine 150 to be converted to a desired power and output to a power transmission gear 111 mechanically connected with the ring gear 122. The engine 150 may be driven at any driving point that can output energy identical with the energy output to the ring gear 122. This structure allows the engine 150 to be driven at a desired driving point of highest possible efficiency, thereby enhancing the efficiency of the whole apparatus.
摘要:
The battery current is sampled and accumulated for T seconds (102,104). The obtained accumulated value is used to determine the control target Pg of the generated power. Since the generated power is controlled according to the accumulated current of the battery which fits the characteristic of the battery (14) compared to the charged-and-discharged power, state of charge (SOC) of the battery (14) can be more accurately controlled within the target zone. When the SOC of the battery (14) is initially outside the target zone (116), the SOC is adjusted within the target zone by forcibly discharging (112) or charging (118) the battery (14). The precision of SOC control can be improved compared to when the SOC of the battery (14) is controlled using the charged-and-discharged power.
摘要:
From the tendency of an inverter input power P i or a motor dissipation power in a certain period is first estimated the tendency of the inverter input power P i or the motor dissipation power in the next period. The target power to be generated is then set on the basis of the results of the estimation. Alternatively the target power to be generated is corrected in accordance with the quantities such as an accelerator angle θ A indicating the load of the motor or a battery current I B indicating the state of charge/discharge of the battery (16). Alternatively that period is compulsorily interrupted to start the next period. This will eliminate a delay arising from averaging the inverter input powers P i or the motor dissipation power for use as the target power P in the next period, thus resulting in improved vehicle power efficiency and drive feeling.