摘要:
A hybrid electric drive system for a vehicle comprises a combustion engine (1), a transmission (2), a first clutch (3) disposed between the engine (1) and the transmission (2), a rotating electric machine (4) which serves as a motor as well as a generator, a second clutch (30) disposed between the rotating electric machine (4) and the transmission (2), and a storage device (9). When the second clutch (30) is commanded to connect the rotating electric machine (4) to the transmission (2), a control unit (10) controls the rotating electric machine (4) so as to decrease the difference between the rotation speeds of the rotating electric machine (4) and the transmission (2) (S2) and cause the second clutch (30) to connect the rotating electric machine (4) to the transmission (2) only after the difference decreases to a allowable value (S3, S4).
摘要翻译:一种用于车辆的混合电动驱动系统,包括内燃机(1),变速器(2),设置在发动机(1)和变速器(2)之间的第一离合器(3),旋转电机 用作电动机以及发电机,设置在旋转电机(4)和变速器(2)之间的第二离合器(30)和存储装置(9)。 当第二离合器(30)被命令将旋转电机(4)连接到变速器(2)时,控制单元(10)控制旋转电机(4),以便减小旋转电机 旋转电机(4)和变速器(2)(S2),并且仅在差异减小到允许值之后使第二离合器(30)将旋转电机(4)连接到变速器(2) S 3,S 4)。
摘要:
In a hybrid-drive electric vehicle, upon request of gear shifting of a transmission (2), a clutch (3) is first disconnected and the transmission (2) is set to a neutral position. The rotating electric generator 4 is then operated in a motor mode or a power generating mode so that a rotational speed of an input shaft of the transmission (2) reaches a region of a synchronizing rotational speed in accordance with a requested gear position. When the rotational speed of the input shaft of the transmission (2) reaches the region of the synchronizing rotational speed, the gear position of the transmission (2) is changed over from the neutral position to the requested gear position. Thus the rotation synchronizing time for the gear shifting in the transmission (2) is reduced, making it possible to perform the gear shifting for a short period of time.
摘要:
A controller (10) of a hybrid vehicle determines an engine torque at a point on an engine torque high efficiency line at the current engine rotation speed as a target engine torque, and determines the current engine torque from the current engine rotation speed and current accelerator depression amount. Then, when the gear position of a transmission (2) is neutral, the vehicle is stationary and a storage device (9) requires charging, the controller (10) sets the difference between the target engine torque and the current engine torque as a target power generation torque of a motor generator (4), sets a transitional time period corresponding to the target power generation torque, and performs control over the transitional time period to raise the power generation torque of the motor generator gradually to the target power generation torque.
摘要:
In a hybrid-drive electric vehicle, upon request of gear shifting of a transmission (2), a clutch (3) is first disconnected and the transmission (2) is set to a neutral position. The rotating electric generator 4 is then operated in a motor mode or a power generating mode so that a rotational speed of an input shaft of the transmission (2) reaches a region of a synchronizing rotational speed in accordance with a requested gear position. When the rotational speed of the input shaft of the transmission (2) reaches the region of the synchronizing rotational speed, the gear position of the transmission (2) is changed over from the neutral position to the requested gear position. Thus the rotation synchronizing time for the gear shifting in the transmission (2) is reduced, making it possible to perform the gear shifting for a short period of time.
摘要:
A controller (10) of a hybrid vehicle determines an engine torque at a point on an engine torque high efficiency line at the current engine rotation speed as a target engine torque, and determines the current engine torque from the current engine rotation speed and current accelerator depression amount. Then, when the gear position of a transmission (2) is neutral, the vehicle is stationary and a storage device (9) requires charging, the controller (10) sets the difference between the target engine torque and the current engine torque as a target power generation torque of a motor generator (4), sets a transitional time period corresponding to the target power generation torque, and performs control over the transitional time period to raise the power generation torque of the motor generator gradually to the target power generation torque.
摘要:
A hybrid electric drive system for a vehicle comprises a combustion engine (1), a transmission (2), a first clutch (3) disposed between the engine (1) and the transmission (2), a rotating electric machine (4) which serves as a motor as well as a generator, a second clutch (30) disposed between the rotating electric machine (4) and the transmission (2), and a storage device (9). When the second clutch (30) is commanded to connect the rotating electric machine (4) to the transmission (2), a control unit (10) controls the rotating electric machine (4) so as to decrease the difference between the rotation speeds of the rotating electric machine (4) and the transmission (2) (S2) and cause the second clutch (30) to connect the rotating electric machine (4) to the transmission (2) only after the difference decreases to a allowable value (S3, S4).
摘要翻译:一种用于车辆的混合电动驱动系统,包括内燃机(1),变速器(2),设置在发动机(1)和变速器(2)之间的第一离合器(3),旋转电机 用作电动机以及发电机,设置在旋转电机(4)和变速器(2)之间的第二离合器(30)和存储装置(9)。 当第二离合器(30)被命令将旋转电机(4)连接到变速器(2)时,控制单元(10)控制旋转电机(4),以便减小旋转电机 旋转电机(4)和变速器(2)(S2),并且仅在差异减小到允许值之后使第二离合器(30)将旋转电机(4)连接到变速器(2) S 3,S 4)。
摘要:
A hybrid vehicle system comprises an engine (1), a gearbox (4), a clutch (3) for engaging or disengaging the gearbox (4) with or from the engine (1), a rotating machine (2), a power transmission mechanism (5) for transmitting the rotation of the rotating machine (2) to the gearbox, and a capacitor (7) for storing electric power supplied from the rotating machine (2). A control unit (20) computes the drive force required by the vehicle, and determines the portion of output to be produced by the rotating machine (2) according to the stored energy in the capacitor (7) and the portion of output to be produced by the engine (1) so that the drive force requirement may be satisfied. The outputs from the rotating machine (2) and the engine (1) are controlled to obtain the determined portions of output, and a clutch (3) is then engaged.
摘要:
A temperature-sensitive type urea sensor 74 is adopted for use in an engine exhaust gas purifying apparatus. The magnitude of convection of urea aqueous solution generated in a storage tank 41 is determined based on temperature information detected by the urea sensor 74. For detection of abnormality, a detected concentration Dn is adopted when the percentage GRDt of temperature change of urea aqueous solution is small, so that convection is small and it is determined not to affect accurate detection of an abnormality.
摘要:
The present invention is directed to defrost a reducing agent with cooling water of an engine and to prevent water scale from being deposited and accumulated on a cooling water pipe for circulating the cooling water. A frozen reducing agent is defrosted by being heated with cooling water of an engine. A cooling water pipe for guiding the cooling water to a reducing agent tank is provided with a cutoff valve. To defrost the reducing agent, the cutoff valve is opened. Even in the case where the reducing agent is not frozen, the cutoff valve is opened for a predetermined period after start of the cutoff valve to circulate the cooling water in the cooling water pipe.
摘要:
An engine C/U 51 detects an abnormality which has occurred in an engine, and outputs a signal that indicates the occurrence of this abnormality to an SCR-C/U 61. The SCR-C/U 61 increases and decreases the urea water injection quantity corresponding to the abnormality which has occurred. On the other hand, the SCR-CU 61 detects an abnormality that has occurred in the SCR device, and outputs a signal that indicates the occurrence of this abnormality to an engine C/U 51. The engine C/U 51 controls an engine part such as an EGR valve, to reduce the NOx emission amount.