# US 2010/0138077 A1 · Vehicle control method and vehicle control device

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- Number: US 2010/0138077 A1
- Document ID: US20100138077A1
- Status: Published application
- Kind: A1
- Application number: 12/452,325
- Filed: 2008-04-01
- Published: 2010-06-03
- Earliest claimed: 2007-08-21
- Assignees: Toyota Jidosha Kabushiki Kaisha
- Inventors: Keisuke Kawai
- Web page: https://patentgrep.com/patent/US20100138077A1

## CPC

- F02D 41/1401: {characterised by the control or regulation method (F02D41/1473, F02D41/1477 take precedence)}
- F02D 2041/1418: {Several control loops, either as alternatives or simultaneous}
- F02D: CONTROLLING COMBUSTION ENGINES (vehicle fittings, acting on a single sub-unit only, for automatically controlling vehicle speed B60K31/00; conjoint control of vehicle sub-units of different type or different function, road vehicle drive control systems for purposes other than the control of a single sub-unit B60W)

## Abstract

This invention is intended to ensure that a vehicle control method or vehicle control device is capable of achieving the object of each of a plurality of control logics in a balanced manner and performing an appropriate control for the vehicle as a whole. Demands concerning a plurality of control parameters of a vehicle are output from each of a plurality of control logics having an object individually. The target value of each of the control parameters is determined by mediating the demands from each of the control logics with respect to each kind of control parameter. In doing so, the demand from the control logic whose demand has been reflected to the target value in the already-performed mediation is withdrawn or relieved in the following mediation.

## Claims

### Claim 1

A vehicle control method, comprising:
a demand output step of outputting demands concerning a plurality of control parameters of a vehicle from each of a plurality of control logics having an object individually; and
a target value decision step of determining the target value of each of the control parameters by mediating the demands from each of the control logics with respect to each kind of control parameter;
wherein:
in the demand output step, each of the control logic outputs not only the demands concerning each of the control parameters but also information concerning the priority order among the demands; and
in the target value decision step, the mediation of the demands from the control logics is performed on the basis of the priority.

### Claim 2 (depends on 1)

The vehicle control method according to claim 1, wherein, in the target value decision step, the priority is added up with respect to each kind of control parameter and then the order of performing the mediation among kinds of control parameters is determined on the basis of the result of the adding up.

### Claim 3 (depends on 1)

The vehicle control method according to claim 1, wherein, in the target value decision step, when the mediation is performed sequentially with respect to each kind of the control parameter, the demand from the control logic whose demand has been reflected to the target value in the already-performed mediation is withdrawn or relieved in the following mediation.

### Claim 4

A vehicle control device, comprising:
a plurality of demand output means which output demands concerning a plurality of control parameters of a vehicle in accordance with individual control logics; and
target value decision means which determines the target value of each of the control parameters by mediating the demands from each of the control logics with respect to each kind of control parameter;
wherein:
each of the demand output means outputs not only the demands concerning each of the control parameters but also information concerning the priority order among the demands; and
the target value decision means performs the mediation of the demands from the control logics on the basis of the priority.

### Claim 5 (depends on 4)

The vehicle control device according to claim 4, wherein the target value decision means include a mediation order decision means; the mediation order decision means adds up the priority with respect to each kind of control parameter and determines the order of performing the mediation among kinds of control parameters on the basis of the result of the adding up.

### Claim 6 (depends on 4)

The vehicle control device according to claim 4, wherein the target value decision means, when performing the mediation sequentially with respect to each kind of the control parameter, withdraws or relieves in the following mediation the demand from the control logic whose demand has been reflected to the target value in the already-performed mediation.

### Claim 7

A vehicle control device, comprising:
a plurality of demand output units which output demands concerning a plurality of control parameters of a vehicle in accordance with individual control logics; and
a target value decision unit which determines the target value of each of the control parameters by mediating the demands from each of the control logics with respect to each kind of control parameter;
wherein:
each of the demand output units outputs not only the demands concerning each of the control parameters but also information concerning the priority order among the demands; and
the target value decision unit performs the mediation of the demands from the control logics on the basis of the priority.