# US 10,319,057 B2 · Safety analysis system for wiring

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- Number: US 10,319,057 B2
- Document ID: US10319057B2
- Status: Granted
- Kind: B2
- Application number: 15/800,795
- Filed: 2017-11-01
- Published: 2018-02-22
- Granted: 2019-06-11
- Earliest claimed: 2013-03-29
- Assignees: Mitsubishi Aircraft Corporation
- Applicants: Mitsubishi Aircraft Corporation
- Inventors: Koji Toyama; Satoshi Suehiro; Yoshihiro Nakayama
- Web page: https://patentgrep.com/patent/US10319057B2

## CPC

- G06Q 50/40: Business processes related to the transportation industry (shipping G06Q10/083)
- G06F 30/15: Vehicle, aircraft or watercraft design
- G06F 30/3323: using formal methods, e.g. equivalence checking or property checking
- B64F 5/60: Testing or inspecting aircraft components or systems
- G06F 2113/16: Cables, cable trees or wire harnesses
- G06F 2117/06: Spare resources, e.g. for permanent fault suppression
- G06Q: INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N)
- B64F: GROUND OR AIRCRAFT-CARRIER-DECK INSTALLATIONS SPECIALLY ADAPTED FOR USE IN CONNECTION WITH AIRCRAFT; DESIGNING, MANUFACTURING, ASSEMBLING, CLEANING, MAINTAINING OR REPAIRING AIRCRAFT, NOT OTHERWISE PROVIDED FOR; HANDLING, TRANSPORTING, TESTING OR INSPECTING AIRCRAFT COMPONENTS, NOT OTHERWISE PROVIDED FOR

## Abstract

A safety analysis system for wiring, including: a storage unit that stores electric wire-terminal connector correlation information in which each of a plurality of electric wires and a pair of connectors are correlated with each other, terminal connector-function correlation information in which the pair of connectors located at terminals and a function of a device to which the connectors are connected are correlated with each other, and function determination information including a combination of a plurality of functions that are not allowed to be lost at the same time; and a processing unit that matches the electric wire-terminal connector correlation information and the terminal connector-function correlation information when the wire harness is identified, and generates electric wire-function correlation information in which each of the plurality of electric wires and the function of the device are correlated with each other.

## Claims

### Claim 1

A safety analysis method for wiring in a wiring structure in which each of a plurality of electric wires belonging to a wire harness is connected to a pair of connectors located at terminals via a relay element, the safety analysis method comprising:
storing:
electric wire-terminal connector correlation information in which each of the plurality of electric wires and the pair of connectors are correlated with each other, terminal connector-function correlation information in which the pair of connectors located at the terminals and a function of a device to which the connectors are connected are correlated with each other, and
function determination information including a combination of a plurality of functions that are not allowed to be lost at the same time;
matching the electric wire-terminal connector correlation information and the terminal connector-function correlation information when the wire harness is identified;
generating electric wire-function correlation information in which each of the plurality of electric wires and the function of the device are correlated with each other;
determining whether or not the combination of the plurality of functions included in the function determination information exists in the generated electric wire-function correlation information; and
evaluating that the wire harness is safe when the combination does not exist.

### Claim 2 (depends on 1)

The safety analysis method for wiring according to claim 1, further comprising displaying the generated electric wire-function correlation information.

### Claim 3 (depends on 1)

The safety analysis method for wiring according to claim 1, further comprising displaying a result of the evaluating.

### Claim 4 (depends on 1)

The safety analysis method for wiring according to claim 1, further comprising:
storing terminal connector-separation requirement correlation information in which the pair of connectors located at the terminals and a separation requirement code are correlated with each other;
matching the electric wire-terminal connector correlation information and the terminal connector-separation requirement correlation information when the wire harness is identified; and
generating electric wire-separation requirement correlation information in which each of the plurality of electric wires and the separation requirement code are correlated with each other.

### Claim 5 (depends on 4)

The safety analysis method for wiring according to claim 4, further comprising:
determining whether or not the separation requirement codes included in the generated electric wire-separation requirement correlation information are identical within a range in which redundancy is required; and
evaluating that the wire harness is safe when the separation requirement codes are identical.

### Claim 6 (depends on 4)

The safety analysis method for wiring according to claim 4, further comprising displaying the evaluation result.

### Claim 7 (depends on 1)

The safety analysis method for wiring according to claim 1, further comprising:
changing a design of the wiring structure based on the evaluation of the wire harness, such that an evaluation result of the changed design indicates that the wire harness is safe.

### Claim 8

A safety analysis method for wiring in a wiring structure in which each of a plurality of electric wires belonging to a wire harness is connected to a pair of connectors located at terminals via a relay element, the safety analysis method comprising:
storing electric wire-terminal connector correlation information in which each of the plurality of electric wires and the pair of connectors are correlated with each other, and terminal connector-separation requirement correlation information in which the pair of connectors located at the terminals and a separation requirement code are correlated with each other;
matching the electric wire-terminal connector correlation information and the terminal connector-separation requirement correlation information when the wire harness is identified;
generating electric wire-separation requirement correlation information in which each of the plurality of electric wires and the separation requirement code are correlated with each other;
determining whether or not the separation requirement codes included in the generated electric wire-separation requirement correlation information are identical; and
evaluating that the wire harness is safe when the separation requirement codes are identical.

### Claim 9 (depends on 8)

The safety analysis method for wiring according to claim 8, further comprising displaying the evaluation result.

### Claim 10 (depends on 8)

The safety analysis method for wiring according to claim 8, further comprising:
changing a design of the wiring structure based on the evaluation of the wire harness, such that an evaluation result of the changed design indicates that the wire harness is safe.