# US 2014/0195086 A1 · Control apparatus for hybrid vehicle

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- Number: US 2014/0195086 A1
- Document ID: US20140195086A1
- Status: Published application
- Kind: A1
- Application number: 14/150,293
- Filed: 2014-01-08
- Published: 2014-07-10
- Earliest claimed: 2013-01-08
- Assignees: Toyota Jidosha Kabushiki Kaisha
- Applicants: Toyota Jidosha Kabushiki Kaisha
- Inventors: Masato YOSHIKAWA; Shintaro MATSUTANI
- Web page: https://patentgrep.com/patent/US20140195086A1

## CPC

- B60W 20/40: Controlling the engagement or disengagement of prime movers, e.g. for transition between prime movers {(power-up or power-down of the driveline B60W30/192)}
- B60W 10/02: including control of driveline clutches
- B60W 10/06: including control of combustion engines
- B60W 10/08: including control of electric propulsion units, e.g. motors or generators
- B60W 10/115: with planetary gears
- B60W 30/19: Improvement of gear change, e.g. by synchronisation or smoothing gear shift
- Y02T 10/62: Hybrid vehicles
- Y10S 903/93: Conjoint control of different elements
- B60W: CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- Y02T: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y10S: TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS

## Abstract

A control apparatus for a hybrid vehicle is provided with an engine, an electric motor, a clutch disposed in a power transmitting path between the engine and the electric motor, and a transmission of a step-variable type disposed in a power transmitting path between said electric motor and drive wheels, a shift position of said transmission to be established after a shift-down action thereof performed in a vehicle drive mode using said electric motor as a drive power source being selected on the basis of an output-related value after starting of said engine, and according to a predetermined relationship, when the starting of said engine is required together with said shift-down action.

## Claims

### Claim 1

A control apparatus for a hybrid vehicle provided with an engine, an electric motor, a clutch disposed in a power transmitting path between the engine and the electric motor, and a transmission of a step-variable type disposed in a power transmitting path between said electric motor and drive wheels, wherein:
a shift position of said transmission to be established after a shift-down action thereof performed in a vehicle drive mode using said electric motor as a drive power source is selected on the basis of an output-related value after starting of said engine, and according to a predetermined relationship, when the starting of said engine is required together with said shift-down action.

### Claim 2 (depends on 1)

The control apparatus according to claim 1, wherein the shift position of said transmission to be established after said shift-down action is selected so as to minimize a difference between an operating speed of said engine after the start thereof and an input speed of said transmission after the shift-down action.