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Engine start-up device for hybrid vehicle power transmitting device

A technology for a power transmission device and a hybrid vehicle, which is applied in the field of a power transmission device and a starting engine of a hybrid vehicle, and can solve problems such as the speed change operation of an automatic transmission without special consideration of the increase of the engine speed, and the difficulty of rapidly increasing the engine speed, etc. Achieve rapid response, reduce control load, and improve responsiveness

Active Publication Date: 2009-01-14
TOYOTA JIDOSHA KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a result, it may be difficult to rapidly increase the engine speed
[0008] However, the control device for a transmission device of a hybrid vehicle disclosed in Patent Document 2 does not particularly take into account that an increase in the engine rotation speed for starting the engine and a shifting operation of the automatic transmission are simultaneously performed.

Method used

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  • Engine start-up device for hybrid vehicle power transmitting device
  • Engine start-up device for hybrid vehicle power transmitting device
  • Engine start-up device for hybrid vehicle power transmitting device

Examples

Experimental program
Comparison scheme
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no. 1 example

[0089] figure 1 It is a schematic diagram showing a speed change mechanism 10 that is a part of a power transmission device for a hybrid vehicle according to the present invention. Such as figure 1 As shown in , the transmission mechanism 10 includes a transmission housing 12 (hereinafter referred to as "housing 12") installed on the vehicle body as a non-rotating element, an input shaft 14 provided inside the housing 12 as an input rotating element, directly or The differential section 11, which is indirectly coaxially connected to the input shaft 14 through an unshown pulse absorbing damper (shock absorber) and serves as a continuously variable transmission section, is connected in series to the differential via a power transmission member (power transmission shaft) 18. speed part 11 and drive wheel 34 (see Figure 6 ) in the power transmission path between the automatic transmission portion 20, and the output shaft 22 connected with the automatic transmission portion 20 a...

no. 2 example

[0197] In the following second embodiment and the first embodiment Figure 1 to Figure 5 , Figure 7 and Figure 6 (corresponding to the second embodiment Figure 12 ) are the same as those shown. Therefore, descriptions and illustrations of these drawings will be omitted here for simplicity of description, but those descriptions and illustrations will be referred to when necessary. The control device of the second embodiment is represented in the form of "control device 110" Figure 4 middle. Hereinafter, the second embodiment will be described focusing on the points of difference in structure and operation compared with the first embodiment.

[0198] For the second embodiment, rotational speed sensors such as resolvers are used in the first and second motors M1 and M2 respectively, and each rotational speed sensor is capable of detecting rotational speed and rotational direction.

[0199] Considering the responsiveness and comfort demanded by the driver, when the vehic...

no. 3 example

[0247] The third embodiment adopts a configuration in which the electronic control unit 110 of the second embodiment is replaced with an electronic control unit 130 . The configuration of the third embodiment includes a Figure 12 The engine start control device 162 of the engine start control device 146 in the shown functional block diagram and the Figure 12 Other components that are the same as those of the second embodiment shown are engine start determining means 140 , shift state determining means 142 , motor limit state determining means 144 and shift control changing means 148 . Hereinafter, the third embodiment will be described focusing on different points.

[0248] The engine start determination means 140 determines that an engine start determination is made, and the shift state determination means 142 makes a determination to confirm that a shift is performed within the automatic shifting portion 20 . In addition, the motor restriction state determination means 1...

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PUM

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Abstract

The invention relates to an engine starting gear used in a mixing motor vehicle power transmitting device. In the engine starting gear, the engine starting gear (94) changes a starting method of an engine (8) when an automatic speed changing part (20) executes speed changing relative to the starting method of the engine (8) when the automatic speed changing part (20) is not variable. Therefore, the starting operation of the engine (8) negatively affects the speed changing of the automatic speed changing part (20). During speed changing period of the automatic speed changing part (20), the starting operation of the engine (8) is started, compared with responsibility realized on an acceleration required by a driver in starting operation after the automatic speed changing part (20) has completed the speed changing, thereby furthermore increasing responsibility.

Description

technical field [0001] The present invention relates to a control device for a hybrid vehicle power transmission device. More specifically, it relates to a hybrid vehicle power transmission device having an engine and an electric motor and a technique for starting the engine during switching from a motor drive mode to an engine drive mode, the engine consisting of an internal combustion engine as a drive power source to operate vehicle. Background technique [0002] In the prior art, there is known a hybrid vehicle driving apparatus in which driving torque supplied from a main power source composed of an engine, a first electric motor and a differential mechanism is transferred to drive wheels via an output shaft, and the second The electric motor is connected to the output shaft via the automatic transmission. For this hybrid vehicle driving device, a control device is heretofore known in which a vehicle occupant is prevented from being subjected to an increased shock due...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60W10/10B60W10/12B60W20/00F02D29/00F02D29/02F02D45/00F02N11/04B60K17/04F02N11/00F02N11/08F16H3/72F16H61/00B60K6/445B60K6/547B60L50/16B60W10/06B60W10/08
CPCY02T10/6286Y02T10/6239Y02T10/7077Y02T10/62Y02T10/7072
Inventor 柴田宽之田端淳松原亨熊崎健太
Owner TOYOTA JIDOSHA KK
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