Rotational speed control device for vehicle
A speed control, vehicle technology, applied in the direction of power plant, vehicle components, hybrid vehicles, etc., can solve the problem that the combined torque cannot be changed quickly
Inactive Publication Date: 2021-08-24
TOYOTA JIDOSHA KK
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- Abstract
- Description
- Claims
- Application Information
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Problems solved by technology
Therefore, when the motor torque is controlled regardless of the operating conditions of the engine and the motor, there is a possibility that the resultant torque cannot be quickly changed.
Method used
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Embodiment Construction
[0036] exist figure 1 A schematic diagram illustrating an example of a vehicle in an embodiment of the present invention is shown in . figure 1 The shown vehicle Ve is a four-wheel-drive hybrid vehicle including a rear drive device 3 and a front drive device 5 using an engine (Eng) 1 and a rear motor (Re-MG) 2 as driving forces. The front driving device 5 uses the front electric motor (Fr-MG) 4 as a driving force source.
[0037]Various conventionally known gasoline engines and diesel engines can be used as the engine 1 , and the output torque can be changed by controlling the fuel injection amount, intake air amount, ignition timing, and the like. In addition, it is configured to be able to perform fuel cut control that stops fuel supply to the engine 1 and applies braking torque to the output shaft 6 by rotating the engine 1 due to friction torque, pumping loss, and the like. In the following description, the torque generated by the engine 1 is simply referred to as engine...
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Provided is a rotational speed control device for a vehicle capable of appropriately performing feedback control for causing the rotational speed of a predetermined rotating member to follow a target rotational speed. The two torque adding devices are provided so as to apply torque to a prescribed rotating member, and the torque adding devices are configured so as to apply torque to the prescribed rotating member on the basis of the operating states of the torque adding devices when the difference between the actual rotational speed of the prescribed rotating member and the target rotational speed thereof is reduced (step S3). The amount of change in the torque acting on the prescribed rotating member by one of the two torque adding devices is set (step S4 or step S6), and the target amount of change in the combined torque of the two torque adding devices and the amount of change in the torque acting on the prescribed rotating member by the one torque adding device are calculated on the basis of the target amount of change in the combined torque of the two torque adding devices and the amount of change in the torque acting on the prescribed rotating member by the one torque adding device. The amount of change in the torque acting on the predetermined rotating member by the other torque adding device is set (step S5 or step S7).
Description
technical field [0001] The present invention relates to a rotational speed control device for a vehicle that includes a plurality of torque adding devices coupled to a predetermined rotating member in a torque-transmittable manner, and controls the torque of these torque adding devices so that the rotational speed of a predetermined rotating member follows a target rotational speed . Background technique [0002] Patent Document 1 describes a control device for a hybrid vehicle configured to perform feedback control on torque obtained by combining engine torque and electric motor torque in order to To suppress deterioration of emissions due to changes in engine torque, the feedback gain of the engine torque is set smaller than the feedback gain of the motor torque. [0003] Patent Document 2 describes a control device for a hybrid vehicle in which an engine, an electric motor, and an output member are connected in a differentially rotatable manner, and the engine rotation s...
Claims
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IPC IPC(8): B60W10/06B60W10/08
CPCB60W10/06B60W10/08B60W2510/083B60W2510/0657B60K6/52B60K6/448B60W20/10B60W2710/083B60W2710/0672B60W2710/0666B60W2710/085B60W2710/0644B60W30/1882B60W2510/0638B60W50/06Y02T10/62Y02T10/72B60W20/15B60W2510/1025B60W20/40B60W2510/0685B60W30/19
Inventor 佐佐木启介永乐玲
Owner TOYOTA JIDOSHA KK