# US 11,110,894 B2 · Car sharing system

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- Number: US 11,110,894 B2
- Document ID: US11110894B2
- Status: Granted
- Kind: B2
- Application number: 16/647,221
- Filed: 2018-08-28
- Published: 2021-05-20
- Granted: 2021-09-07
- Earliest claimed: 2017-09-20
- Assignees: Kabushiki Kaisha Tokai Rika Denki Seisakusho; Toyota Jidosha Kabushiki Kaisha
- Applicants: Kabushiki Kaisha Tokai Rika Denki Seisakusho; Toyota Jidosha Kabushiki Kaisha
- Inventors: Masahiro Arakawa; Masahiko Oya; Masaki Oshima; Yuichiro Haruna
- Web page: https://patentgrep.com/patent/US11110894B2

## CPC

- B60R 25/246: {characterised by the challenge triggering}
- B60R 25/243: {with more than one way to gain access}
- B60R 25/34: of conditions of vehicle components, e.g. of windows, door locks or gear selectors
- B60R 2325/103: Near field communication [NFC]
- B60R 2325/105: Radio frequency identification data [RFID]
- B60R 2325/205: Mobile phones
- B60R: VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR

## Abstract

A car sharing system includes a car sharing device that actuates an onboard device by performing communication with an electronic key system through ID verification when a user operates the onboard device in an authentication completion state in which key information has been authenticated through wireless communication with the portable terminal, a radio wave checker that checks radio waves transmitted from the electronic key system in accordance with a state of a vehicle power supply when the onboard device is operated with the portable terminal and a key control request corresponding to the operation with the portable terminal is transmitted from the portable terminal to the car sharing device so that the car sharing device actuates the electronic key system, and a warning controller that issues a warning indicating that one has forgotten to stop the vehicle power supply in accordance with a checking result of the radio wave checker.

## Claims

### Claim 1

A car sharing system comprising:
a car sharing device that actuates an onboard device by performing communication with an onboard electronic key system through ID verification when a user operates the onboard device in an authentication completion state in which key information, registered to a portable terminal so that the portable terminal can be actuated as a vehicle key of a shared vehicle, has been authenticated through wireless communication with the portable terminal;
a radio wave checker that checks radio waves transmitted from the electronic key system in accordance with a state of a vehicle power supply when the onboard device is operated with the portable terminal and a key control request corresponding to the operation with the portable terminal is transmitted from the portable terminal to the car sharing device so that the car sharing device actuates the electronic key system; and
a warning controller that issues a warning indicating that one has forgotten to stop the vehicle power supply in accordance with a checking result of the radio wave checker.

### Claim 2 (depends on 1)

The car sharing system according to claim 1, wherein the car sharing device is not wire-connected to the electronic key system and actuates the electronic key system through wireless communication.

### Claim 3 (depends on 1)

The car sharing system according to claim 1, wherein the key control request is a lock request that is a request for locking a vehicle door.

### Claim 4 (depends on 1)

The car sharing system according to claim 1, wherein the radio waves are transmitted from an onboard interior transmitter when a locking operation is performed on a vehicle door.

### Claim 5 (depends on 4)

The car sharing system according to claim 4, wherein the radio waves are transmitted from the interior transmitter when the vehicle power supply is in an IG-off state, and the radio waves are not transmitted from the interior transmitter when the vehicle power supply is in an ACC-on state or an IG-on state.

### Claim 6 (depends on 1)

The car sharing system according to claim 1, wherein a series of processes for monitoring the radio waves and issuing a warning indicating that one has forgotten to stop the vehicle power supply is performed using an interior electronic key detection function included in advance in the electronic key system.