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Vehicle drive device controller

A vehicle driving device and control equipment technology, which is applied in transmission device control, power device, engine control, etc., can solve the problems of reducing torque, affecting acceleration performance, and not being able to provide acceleration performance, so as to improve conversion loss and improve fuel efficiency Effect

Inactive Publication Date: 2011-10-19
TOYOTA JIDOSHA KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in this case, the limitation reduces the torque transmitted to the drive wheels, which in turn affects acceleration performance
As a result, the desired acceleration performance is not provided, especially when the vehicle is starting off or overtaking

Method used

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  • Vehicle drive device controller
  • Vehicle drive device controller
  • Vehicle drive device controller

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0113] figure 1 is used to explain the transmission mechanism 10 constituting a part of a hybrid vehicle driving apparatus according to an embodiment of the present invention. The transmission mechanism 10 includes: an input shaft 14, a differential portion 11, an automatic transmission portion (i.e., a shifting portion) 20 and an output shaft 22, all of which are coaxially arranged in a transmission housing 12 as a non-rotatable component fixed to the vehicle body. (hereinafter referred to as "housing 12"). An input shaft 14 as an input rotating member is fixed to the housing 12 . The differential portion 11 is connected to the input shaft 14 directly or indirectly via a pulsation absorbing damper (vibration damper) not shown. An automatic transmission portion 20 functioning as a stepped transmission is arranged between the differential mechanism 11 and the output shaft 22 connected in series thereto. An output shaft 22 as an output rotating member is connected to the auto...

Embodiment 2

[0275] Figure 14 is a skeleton diagram illustrating the structure of a transmission mechanism 70 according to another embodiment of the present invention. The actuation of FIG. 15 shows the relationship between the actuation combination of the shift stage of the transmission mechanism 70 and the hydraulic friction engagement device used therefor. Figure 16 The collinear diagram of illustrates the shifting operation of the shifting mechanism 70.

[0276] Like the above-mentioned embodiment, the transmission mechanism 70 includes a differential portion 11 and an automatic shift portion 72, the differential portion 11 includes a first electric motor M1, a power distribution mechanism 16, and a second electric motor M2, and the automatic shift portion 72 communicates with the differential through the transmission member 18. Section 11 and output shaft 22 are connected in series and have three forward gears. The power distribution mechanism 16 includes a first planetary gear un...

Embodiment 3

[0291] Figure 17 An example is shown of an interactive switch 44 (hereinafter referred to as "switch 44") as shift state manual selection means, which is mounted on the vehicle and manually operated by the driver of the vehicle. The switch 44 allows manual operation to selectively place the power distributing mechanism 16 into a differential state and a non-differential state (locked state), that is, a continuously variable transmission state and a stepped transmission state. Switch 44 allows the vehicle to travel in the shift state desired by the driver of the vehicle. The switch 44 has: a continuously variable speed change driving command button, on which "stepless" is displayed, indicating a continuously variable speed change driving mode; . When the driver of the vehicle presses one of these buttons, the transmission mechanism 10 is selectively placed in a continuously variable transmission state operable as an electronically controlled continuously variable transmissio...

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PUM

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Abstract

The present invention provides a controller for a vehicle drive device having a differential mechanism capable of performing differential function. The controller enables reduction of the size of the drive device, improves fuel consumption, and increases the output torque. By providing a switching clutch (C0) or a switching brake (B0), a speed change mechanism (10) is switched between a step-less speed change state and a stepped speed change state. That is, it is possible to obtain a drive device having both advantages: the speed change ratio is electrically modified and the gear fuel consumption is improved; and a gear transmission device mechanically transmits power with a high efficiency. Moreover, upon engine start and during travel, the switching clutch (C0) is set to a semi-engaged state by switching control means (50). Accordingly, while the differential unit (11) can operate as electrically step-less gear, a reactive torque is generated for the engine torque TE by the semi-engagement of the switching clutch (C0). The engine torque (TE) above the torque that a first motor (M1) can have can be inputted to the differential unit (11), thereby increasing the output torque.

Description

technical field [0001] The present invention relates to a vehicle drive device including a differential mechanism capable of performing a differential action and an electric motor, and more particularly, to a technique for downsizing an electric motor and the like. Background technique [0002] There is known a drive device for a vehicle, which includes a differential mechanism capable of distributing the output of a driving force source (for example, an engine, etc.) to a first electric motor and an output member, and a second electric motor provided between the output member and drive wheels . For example, Patent Document 1 and Patent Document 2 disclose such a driving device for a hybrid vehicle. The drive device includes a differential mechanism constituted by a planetary gear unit and performs a differential action to mechanically transmit a main part of power output from the engine to drive wheels. The remainder of the power from the engine is transferred electricall...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60W20/00F16H61/02B60L11/14B60W10/04B60W10/06B60W10/08B60W10/10F02D29/00F02D29/02B60K6/445B60K6/543B60K6/547B60L50/16B60W10/105B60W10/11B60W10/115F16H59/14F16H61/68F16H61/684F16H61/686F16H63/40F16H63/50
CPCY02T10/62Y02T10/7072
Inventor 田端淳多贺丰井上雄二镰田淳史
Owner TOYOTA JIDOSHA KK