Vehicle drive device controller

A driving device and control equipment technology, which is applied in the direction of transmission control, traction driven by an engine, power plant, etc., can solve the problems of speed change shock, complicated control of transmission and continuously variable speed parts, etc., and achieves fuel economy improvement, suppression Effects of Conversion Efficiency Loss

Active Publication Date: 2008-07-23
TOYOTA JIDOSHA KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the engagement pressure of the engagement device needs to be controlled in conjunction with the control of the continuously variable transmission portion during shifting of the stepped transmission, and therefore, it is likely that the control of the transmission and the continuously variable transmission portion will More complex, leading to the occurrence of shift shock

Method used

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

Examples

Experimental program
Comparison scheme
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Embodiment 1

[0168] FIG. 1 is a skeleton diagram showing a speed change mechanism (ie, transmission mechanism) 10 constituting a part of a hybrid vehicle driving apparatus according to an embodiment of the present invention. A transmission mechanism (ie, transmission mechanism) 10 includes an input shaft 14, a differential portion 11, an automatic transmission portion 20, and an output shaft 22, all of which are coaxially arranged in a transmission case 12 as a non-rotatable member fixed to a vehicle body. (hereinafter referred to as "housing 12"). An input shaft 14 as an input rotating member is fixed to the housing 12 . A differential portion 11 functioning as a continuously variable transmission portion is directly or indirectly connected to an input shaft 14 via an unillustrated pulsation absorbing damper (vibration damper). An automatic transmission portion 20 (ie, an automatic transmission portion functioning as a stepped transmission) is disposed between the differential mechanism ...

Embodiment 2

[0427] FIG. 20 is a skeleton diagram illustrating the structure of a transmission mechanism 70 according to another embodiment of the present invention. The actuation of FIG. 21 shows the relationship between the actuation combination of the shift stage of the transmission mechanism 70 and the hydraulic friction engagement device used therefor. The nomographic diagram of FIG. 22 illustrates the shifting operation of the shifting mechanism 70 .

[0428] 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 distributing mechanism 16 includes a first planetary gear unit 2...

Embodiment 3

[0443] FIG. 23 shows an example of an interactive switch 44 (hereinafter referred to as "switch 44") as shift state manual selection means, which is mounted on a vehicle and manually operated by a vehicle driver. 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, the continuously variable state and the stepped state of the transmission mechanism 10 . 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 transmission or a...

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PUM

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Abstract

In a vehicle drive device comprising a differential mechanism and a motor provided therein, size of the drive device is reduced or its fuel consumption is improved while suppressing occurrence of speed change shock. Since an exchange clutch C0 or an exchange brake B0 is provided, a speed change mechanism (10) is switched between a stepless speed state and a stepped speed state so as to obtain a drive device having both advantages of fuel consumption improvement of a transmission having a speed change ratio electrically altered and high transmission efficiency of a gear type transmission for mechanically transmitting power. During speed change of an automatic speed change section (20) when a differential section (11) is in variable speed state, engaging pressure of an engaging device in the automatic speed change section (20) is controlled by an engaging pressure control means (84) so that the rotational speed N18 of a transmission member is varied to satisfy both quick speed change response on feeling and slow speed change response on speed change shock, thus suppressing occurrence of speed change shock.

Description

technical field [0001] The present invention relates to a drive device for a vehicle having a differential mechanism operable to perform a differential action and an electric motor, and more specifically, to a technique for downsizing an electric motor and the like. Background technique [0002] There is known a driving device for a vehicle, which includes: a differential mechanism through which the output of a driving force source such as an engine is distributed to a first electric motor and an output member; A second electric motor between the wheels. For example, Patent Document 1 discloses such a driving device for a hybrid vehicle. The driving device includes a differential mechanism constituted by a planetary gear unit (ie, a gear set) and performing a differential action to mechanically transmit a main part of power output from an engine to drive wheels. The remainder of the power from the engine is electrically transferred from the first electric motor to the seco...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60W20/00F16H61/04B60K6/22B60L11/14B60K6/445B60K6/543B60K6/547B60L50/16B60W10/06B60W10/08B60W10/10F16H59/18F16H59/42F16H59/68F16H61/02F16H61/06F16H61/66F16H61/68F16H61/684F16H61/686F16H63/50
CPCY02T10/6239Y02T10/7077Y02T10/6286Y02T10/62
Inventor 田端淳井上雄二镰田淳史
Owner TOYOTA JIDOSHA KK
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