# US 9,517,690 B2 · Vehicle driving control device

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- Number: US 9,517,690 B2
- Document ID: US9517690B2
- Status: Granted
- Kind: B2
- Application number: 14/940,617
- Filed: 2015-11-13
- Published: 2016-05-26
- Granted: 2016-12-13
- Earliest claimed: 2014-11-20
- Assignees: Toyota Jidosha Kabushiki Kaisha
- Applicants: Toyota Jidosha Kabushiki Kaisha
- Inventors: Hiroto Hashimoto; Yuji Iwase; Hiroaki Ebuchi; Hidekazu Nagai; Shotaro Kato
- Web page: https://patentgrep.com/patent/US9517690B2

## CPC

- B60K 6/445: Differential gearing distribution type
- B60K 6/365: with the gears having orbital motion
- 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)}
- B60K 2006/381: {characterized by driveline brakes}
- F16H 3/727: {with at least two dynamo electric machines for creating an electric power path inside the gearing, e.g. using generator and motor for a variable power torque path}
- F16H 2037/0866: {Power-split transmissions with distributing differentials, with the output of the CVT connected or connectable to the output shaft}
- F16H 2200/2005: with one sets of orbital gears
- Y02T 10/62: Hybrid vehicles
- Y10S 903/903: having energy storing means, e.g. battery, capacitor
- B60K: ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- 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
- F16H: GEARING
- Y02T: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y10S: TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS

## Abstract

A vehicle driving control device for a vehicle includes a control unit configured to stop operation of an electric motor driving device driving an electric motor at a time a rotary element is fixed to be unable to rotate by an engagement by an engaging mechanism, and to recover the operation of the electric motor driving device at a time a predetermined condition based on a parameter relating to a driving of the vehicle is satisfied before releasing the engagement by the engaging mechanism.

## Claims

### Claim 1

A vehicle driving control device for a vehicle, the vehicle including: an engine and an electric motor a as power sources; a differential mechanism whose rotary elements including three rotary elements connected to the engine, the electric motor and a driving shaft, respectively, and performing a differential operation to each another; a rotary engagement element rotating integrally with a rotary element other than the rotary element connected to the engine and the rotary element connected to the driving shaft; a fixed engagement element fixed so as to be unable to rotate; a meshing engaging mechanism selectively fixing the rotary element rotating integrally with the rotary engagement element to be unable to rotate by engaging the rotary engagement element with the fixed engagement element or releasing the engagement of the rotary engagement element with the fixed engagement element; and an electric motor driving device driving the electric motor, the vehicle driving control device comprising:
a control unit configured to stop operation of the electric motor driving device at a time the rotary element is fixed to be unable to rotate, and to recover the operation of the electric motor driving device at a time a predetermined condition based on a parameter relating to a driving of the vehicle is satisfied before releasing the engagement by the engaging mechanism.

### Claim 2 (depends on 1)

The vehicle driving control device according to claim 1, wherein the control unit releases the engagement by the engaging mechanism after operation recovery of the electric motor driving device is completed at a time a condition to release the engagement by the engaging mechanism is satisfied before the operation recovery of the electric motor driving device is completed.

### Claim 3 (depends on 2)

The vehicle driving control device according to claim 2, wherein the control unit stops the operation of the electric motor driving device at a time the condition to release the engagement by the engaging mechanism is not satisfied even when predetermined time elapses after the operation recovery of the electric motor driving device is completed.

### Claim 4 (depends on 1)

The vehicle driving control device according to claim 1, wherein the control unit stops the operation of the electric motor driving device at a time the condition to release the engagement by the engaging mechanism is not satisfied even when predetermined time elapses after the operation recovery of the electric motor driving device is completed.