Power transmission device
US-9227636-B2 · Jan 5, 2016 · US
Control apparatus for a hybrid vehicle drive system
US9415676B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9415676-B2 |
| Application number | US-201514721676-A |
| Country | US |
| Kind code | B2 |
| Filing date | May 26, 2015 |
| Priority date | Jun 6, 2014 |
| Publication date | Aug 16, 2016 |
| Grant date | Aug 16, 2016 |
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- Title
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Abstract
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A control apparatus for a hybrid vehicle drive system including: a differential device provided with rotary elements respectively connected to an engine, first and second electric motors and an output rotary member; a brake for selectively fixing the rotary element connected to the first electric motor, to a stationary member; and a parking-lock mechanism preventing a rotary motion of a parking-lock gear connected to the output rotary member, when a manually-operated shifting device is operated to a parking-lock position. The control apparatus includes an engine starting control-portion configured to start the engine in a starting-mode wherein an operating speed of the engine is raised with a torque generated by the second electric motor in an engaged state of the brake, where the engine is required to be started while the vehicle has been held at rest and the rotary motion of the parking-lock gear is prevented by the parking-lock mechanism.
First claim
Opening claim text (preview).
The invention claimed is: 1. A control apparatus for a drive system of a hybrid vehicle including: a first differential mechanism provided with a rotary element connected to an engine and a rotary element connected to a first electric motor; a second differential mechanism provided with a rotary element connected to a second electric motor and a rotary element connected to an output rotary member; a brake configured to selectively fix the rotary element of the first differential mechanism connected to the first electric motor, to a stationary member; and a parking lock mechanism configured to prevent a rotary motion of a parking lock gear connected directly or indirectly to the output rotary member, when a manually operated shifting device is operated to a parking lock position, the control apparatus comprising: an engine starting control portion configured to start the engine in a first starting mode in which an operating speed of the engine is raised with a torque generated by the second electric motor in an engaged state of the brake, where the engine is required to be started while the vehicle has been held at rest and the rotary motion of the parking lock gear is prevented by the parking lock mechanism. 2. The control apparatus according to claim 1 , further comprising a battery sensor configured to detect an output of a battery, and wherein the engine starting control portion starts the engine in the first starting mode when the output of the battery detected by the battery sensor is smaller than a predetermined threshold value. 3. The control apparatus according to claim 2 , wherein the engine starting control portion starts the engine in a second starting mode in which the operating speed of the engine is raised with a torque generated by the first electric motor while the second electric motor is operated to generate a reaction torque, where the engine is required to be started while the output of the battery detected by the battery sensor is not smaller than the predetermined threshold value.
Assignees
Inventors
Classifications
- B60W10/06Primary
including control of combustion engines · CPC title
including control of electric propulsion units, e.g. motors or generators · CPC title
Conjoint control of different elements · CPC title
Charge state · CPC title
in order to stay within battery power input or output limits; in order to prevent overcharging or battery depletion · CPC title
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- What does patent US9415676B2 cover?
- A control apparatus for a hybrid vehicle drive system including: a differential device provided with rotary elements respectively connected to an engine, first and second electric motors and an output rotary member; a brake for selectively fixing the rotary element connected to the first electric motor, to a stationary member; and a parking-lock mechanism preventing a rotary motion of a parking…
- Who is the assignee on this patent?
- Toyota Motor Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification B60W10/06. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Aug 16 2016 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 4 related publications on this page (citations in our corpus or others sharing the same primary CPC).