Hybrid vehicle control device

A hybrid vehicle and control device technology, applied in hybrid vehicles, power units, pneumatic power units, etc., can solve problems such as inability to reduce torque, and achieve the effect of avoiding torque shock

Active Publication Date: 2016-10-12
TOYOTA JIDOSHA KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, there is a technical problem that, when the internal combustion engine performs lean combustion, even if it is attempted to perform torque down control at the time of shifting, the torque cannot be reduced until the above-mentioned disadvantages can be avoided.

Method used

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no. 1 Embodiment approach ＞

[0067] refer to Figure 1 to Figure 13 , the hybrid vehicle control device according to the first embodiment will be described.

[0068]

[0069] First, refer to figure 1 , the overall structure of the hybrid vehicle 1 (in particular, the structure of the drive mechanism) of the present embodiment will be described. here, figure 1 It is a block diagram showing the overall configuration of the hybrid vehicle according to the first embodiment.

[0070] Such as figure 1 As shown, the hybrid vehicle 1 according to the present embodiment is configured as a hybrid vehicle in which a plurality of power sources are combined. Specifically, hybrid vehicle 1 has engine 200 , motor generator MG1 , and motor generator MG2 as power sources for traveling.

[0071] Engine 200 functions as a main power source of hybrid vehicle 1 and is a gasoline engine as an example of the "internal combustion engine" of the present invention.

[0072] Motor generators MG1 and MG2 have a work function...

no. 2 Embodiment approach ＞

[0138] Next, refer to Figure 14 ~ Figure 16 , the hybrid vehicle control device according to the second embodiment will be described. In addition, the second embodiment differs from the above-mentioned first embodiment only in a part of operations, and the other operations and device configurations are substantially the same. Therefore, in the following, parts different from those of the first embodiment will be described in detail, and descriptions of overlapping parts will be appropriately omitted.

[0139]

[0140] First, refer to Figure 14 , the operation of the hybrid vehicle control device according to the second embodiment will be described. here, Figure 14 It is a flowchart showing the operation of the hybrid vehicle control device according to the second embodiment.

[0141] exist Figure 14 Here, when the control device for the hybrid vehicle according to the second embodiment is in operation, the HVECU 60 predicts the shifting by the transmission 400 (step...

no. 3 Embodiment approach ＞

[0156] Next, refer to Figure 17 A control device for a hybrid vehicle according to a third embodiment will be described. In addition, the third embodiment differs only in a part of operations from the above-mentioned first and second embodiments, and other operations and / or device configurations are substantially the same. Therefore, in the following, parts different from those of the first and second embodiments will be described in detail, and descriptions of overlapping parts will be appropriately omitted.

[0157]

[0158] First, refer to Figure 17 , the operation of the hybrid vehicle control device according to the third embodiment will be described. here, Figure 17 It is a flowchart showing the operation of the hybrid vehicle control device according to the third embodiment.

[0159] exist Figure 17 Here, when the control device for the hybrid vehicle according to the third embodiment is in operation, the HVECU 60 predicts the shifting by the transmission 400...

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PUM

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Abstract

A hybrid vehicle control device (60, 70, 71) is provided with an air-fuel ratio determination means for determining the air-fuel ratio of an internal combustion engine (200) during a prescribed time period until gearshifting by a gearshifting means is actually carried out, and a control means for controlling the internal combustion engine and / or an electric motor so that the torque of the internal combustion engine can be reduced by a greater amount when the internal combustion engine has a lean air-fuel ratio during the prescribed time period. Disadvantages such as torque shock that could occur during gearshifting and reduced durability of friction members can thereby be suitably avoided.

Description

technical field [0001] The present invention relates to the technical field of, for example, a control device for a hybrid vehicle that controls a hybrid vehicle having an internal combustion engine and an electric motor as power sources. Background technique [0002] In a hybrid vehicle, for example, there is known a technique of performing a lean burn on an internal combustion engine in order to improve fuel consumption (for example, refer to Patent Documents 1 and 2). [0003] In addition, there are known technologies that perform torque-down control of the internal combustion engine during gear shifting in order to prevent torque shock during gear shifting and / or deterioration of durability of friction members (for example, refer to Patent Documents 3 and 4). [0004] prior art literature [0005] patent documents [0006] Patent Document 1: Japanese Patent Laid-Open No. 2009-144575 [0007] Patent Document 2: Japanese Patent Application Laid-Open No. 2007-186197 [...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60W10/08B60K6/445B60K6/547B60L11/14B60W10/06B60W10/26B60W20/15F02D29/00F02D41/04B60L50/16
CPCB60K6/365B60K6/383B60K6/387B60K6/445B60K6/547B60K2006/381B60W10/06B60W10/08B60W10/105B60W20/10B60W30/186B60W30/1882B60W30/19B60W2510/0619B60W2710/0622B60W2710/0644B60W2710/0666B60W2710/083B60L50/16F02D29/02F02D41/023F02D2250/21F16H3/66F16H2200/0043F16H2200/2007F16H2200/201F16H2200/2043F16H2200/2066F16H2200/2082F02M26/06F02M26/23Y02T10/40Y02T10/62Y02T10/7072Y02T10/84B60W10/26B60W20/00F16H3/728Y02T10/70
Inventor 熊崎健太田端淳松原亨今村达也椎叶一之
Owner TOYOTA JIDOSHA KK
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