Control device for vehicle drive device

Abstract

The present invention appropriately supplies oil to an oil path for engagement control even when a failure occurs in which a flow path control valve capable of switching the destination of oil discharged from a pump between an oil path for lubrication and cooling and the oil path for engagement control is fixed to a side on which the oil path for lubrication and cooling and the pump are connected together. The vehicle drive device is provided with: an engagement pressure flow path (21); a flow path (22) for lubrication; a first pump (1) having an outlet connected to the engagement pressure flow path (21); a second pump (2); and a flow path control valve (5). The flow path control valve (5) selectively switches a flow path between a first state in which the destination of flow of oil discharged from the second pump (2) is set to the engagement pressure flow path (21) and a second state in which that destination is set to the flow path (22) for lubrication. When a failure occurs in which the flow path control valve (5) is fixed in the second state (#1), a control device (10) of the vehicle control device increases the rotational speed of at least one of an internal combustion engine (70) and a rotating electric machine (80) to execute fail-safe control (#3) to supply oil to the engagement pressure flow path (21) by the first pump (1).

Description

technical field [0001] The present invention relates to a control device for a vehicle drive device that has an internal combustion engine and a rotary electric machine as a driving force source for wheels, which controls the vehicle drive device. Background technique [0002] According to Japanese Patent Application Laid-Open No. 2015-197146, in a vehicle drive device having an internal combustion engine and a rotary electric machine as driving power sources for wheels, oil for engagement control is supplied to an engagement device included in the vehicle drive device, and oil is supplied to an engagement device included in the vehicle drive device. A vehicle drive device is a hydraulic circuit for supplying lubricating oil (hereinafter, the reference numerals in parentheses in the background art are reference numerals in the references). The hydraulic circuit includes a mechanical oil pump (34) and an electric oil pump (35). [0003] The output side of the electric oil pu...

AI Technical Summary

Problems solved by technology

However, there is no disclosure of a structure capable of more efficiently supplying oil for engagement control from the electric oil pump (35). To the oil circuit for engagement control instead of the oil circuit for lubrication and cooling

[0008] However, even if there is a valve capable of switching the flow path of the oil discharged from the electric oil pump (35) between the oil path for lubrication and cooling and the oil path for engagement control, if the valve fails, etc. When the flow path of the oil discharged from the type oil pump (35) is fixed on the lubricating and cooling oil path side

In such a case, the engagement of the engagement device may cause an obstacle, which may hinder the proper running of the vehicle including starting.

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