# US 7,607,510 B1 · Collision detection system for vehicle

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- Number: US 7,607,510 B1
- Document ID: US7607510B1
- Status: Granted
- Kind: B1
- Application number: 12/345,115
- Filed: 2008-12-29
- Granted: 2009-10-27
- Earliest claimed: 2008-06-02
- Assignees: Hyundai Motor Company; Kia Motors Corporation
- Inventors: Sung Ho Mun
- Web page: https://patentgrep.com/patent/US7607510B1

## CPC

- B60R 21/0132: responsive to vehicle motion parameters {, e.g. to vehicle longitudinal or transversal deceleration or speed value}
- B60R 21/01338: {using vector analysis}
- B60R 21/0136: responsive to actual contact with an obstacle {, e.g. to vehicle deformation, bumper displacement or bumper velocity relative to the vehicle (monitoring crash strength in combination with passenger seat detection B60R21/01558)}
- B60T 7/22: initiated by contact of vehicle, e.g. bumper, with an external object, e.g. another vehicle {, or by means of contactless obstacle detectors mounted on the vehicle}
- B60K 6/20: the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
- B60R: VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60T: VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL (electrodynamic brake systems for vehicle, in general B60L; brakes per se, i.e. devices where braking effect occurs, including ultimate brake actuators, F16D); ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- 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

## Abstract

Disclosed herein is a collision detection system for a vehicle. The collision detection system for a vehicle according to the present invention includes a sensor unit and a control unit. The sensor unit measures impacts A and B along two axes that intersect each other in diagonal directions. The control unit calculates a longitudinal impact X and a transverse impact Y using the measured impacts A and B, and determines the direction of collision and whether to operate at least one device for protection against collision-related injury using the impacts.

## Claims

### Claim 1

A collision detection system for a vehicle, comprising:
a sensor unit for measuring impacts A and B caused by a collision which are applied, respectively, along two axes that intersect each other in diagonal directions of a vehicle; and
a control unit for calculating a longitudinal impact X and a transverse impact Y using the measured impacts A and B, and determining the direction of the collision and whether to operate at least one device for protection against collision-related injury using the impacts A, B, X and Y.

### Claim 2 (depends on 1)

The collision detection system for a vehicle as set forth in claim 1, wherein the sensor unit is installed on a central portion of the vehicle.

### Claim 3 (depends on 1)

The collision detection system for a vehicle as set forth in claim 1, wherein the control unit distinguishes a front collision and a side collision from each other by comparing magnitude of the impact X with magnitude of the impact Y.

### Claim 4 (depends on 1)

The collision detection system for a vehicle as set forth in claim 1, wherein the control unit operates the device or devices for protection against collision-related injury if the impact X or Y or the impacts X and Y are greater than an operational reference value or values.

### Claim 5 (depends on 4)

The collision detection system for a vehicle as set forth in claim 4, wherein the control unit operates the device or devices for protection against collision-related injury if the impact A is greater than a first reference value and the impact B is greater than a second reference value.

### Claim 6 (depends on 4)

The collision detection system for a vehicle as set forth in claim 4, wherein the control unit operates the device or devices for protection against collision-related injury if the impact X is greater than a third reference value and the impact B is greater than a fourth reference value.