Vehicle passive entry/passive start system

• US 10,035,494 B2
• Filed: 02/20/2017
• Issued: 07/31/2018
• Est. Priority Date: 12/06/2016
• Status: Active Grant

• Current Assignee: DENSO Corporation, Denso International America Incorporated (DENSO Corporation)
• Original Assignee: DENSO Corporation, Denso International America Incorporated (DENSO Corporation)
• Inventors: Sute, Steven
• Primary Examiner(s): Lee, Tyler J
• Application Number:
  US15/437,236
• Publication Number:
  US 20180154866A1
• Time in Patent Office: 526 Days
• Field of Search: 701 2, 701 36
• CPC Class Codes: B60R 2325/101 Bluetooth
• CPC Class Codes: B60R 2325/205 Mobile phones
• CPC Class Codes: B60R 25/24 using electronic identifiers containing a code not memorised by the user
• CPC Class Codes: B60R 25/406 Power supply in the remote key
• CPC Class Codes: F02N 11/00 Starting of engines by means of electric motors
• CPC Class Codes: F02N 11/0807 Remote means
• CPC Class Codes: F02N 19/00 Starting aids for combustion engines, not otherwise provided for
• CPC Class Codes: F02N 2200/106 Driver presence, e.g. detected by door lock, seat sensor or belt sensor
• CPC Class Codes: F02N 2300/306 with external senders or receivers, e.g. receiving signals from traffic lights, other vehicles or base stations
• CPC Class Codes: G07C 2009/00555 comprising means to detect or avoid relay attacks
• CPC Class Codes: G07C 2209/61 Signal comprising different frequencies, e.g. frequency hopping
• CPC Class Codes: G07C 9/00174 Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys mechanical locks with electric permutation E05B49/00; arrangements for sensing or reading record carriers G06K7/00; electronic switching H03K17/00
• CPC Class Codes: G07C 9/00309 operated with bidirectional data transmission between data carrier and locks
• CPC Class Codes: H02J 2310/46 for ICE-powered road vehicles
• CPC Class Codes: H02J 50/00 Circuit arrangements or systems for wireless supply or distribution of electric power
• CPC Class Codes: H02J 50/12 of the resonant type
• CPC Class Codes: H02J 7/00034 Charger exchanging data with an electronic device, i.e. telephone, whose internal battery is under charge
• CPC Class Codes: H04B 5/79 for data transfer in combination with power transfer
• CPC Class Codes: H04W 4/80 Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication

Abstract

A combined vehicle passive entry/passive start (PEPS) and mobile electronic device wireless charging system. The system includes a vehicle transmitter configured to transmit a signal in accordance with a wireless charging protocol. The signal is transmitted through a first wireless communications channel for receipt by a mobile electronic device. A vehicle receiver is configured to receive response data from the mobile electronic device through a second wireless communications channel. The response data is generated by the mobile electronic device in response to receipt of the signal transmitted by the vehicle transmitter. A vehicle processor module is configured to at least one of unlock doors of the vehicle and start the vehicle in response to receipt of the response data by the vehicle receiver.

Claims

1. A combined vehicle passive entry/passive start (PEPS) and mobile electronic device wireless charging system, the system comprising:

a vehicle transmitter configured to transmit a signal in accordance with a wireless charging protocol, the signal transmitted through a first wireless communications channel for receipt by a mobile electronic device;

wherein the first wireless communication channel is a first frequency channel, and the second wireless communications channel is a second frequency channel at a higher frequency than the first frequency channel;

a vehicle receiver configured to receive response data from the mobile electronic device through a second wireless communications channel, the response data generated by the mobile electronic device in response to receipt of the signal transmitted by the vehicle transmitter; and

a vehicle processor module configured to at least one of unlock doors of the vehicle and start the vehicle in response to receipt of the response data by the vehicle receiver.

2. The system of claim 1, wherein the vehicle transmitter is configured to transmit the signal at 80-200 kilohertz.

3. The system of claim 1, wherein the vehicle transmitter is a first vehicle transmitter at an exterior of the vehicle for passive entry;

and

wherein a second vehicle transmitter is at an interior of the vehicle for passive change of a power mode of the vehicle.

4. The system of claim 1, wherein the vehicle transmitter is connected to multiple antennas and/or coils outside of the vehicle for passive entry and/or passive start.

5. The system of claim 1, wherein the vehicle transmitter is configured to generate an electromagnetic field to transfer energy to the mobile electronic device through electromagnetic induction to charge a battery of the mobile electronic device, and the transfer of energy is initiated through the wireless charging protocol.

6. A combined passive entry/passive start (PEPS) and wireless charging system for a mobile electronic device, the system comprising:

a vehicle transmitter configured to transmit a digital ping in accordance with a wireless charging protocol, the digital ping transmitted at a first frequency and through a first wireless communications channel;

a mobile electronic device receiver of the mobile electronic device configured to receive the digital ping;

a mobile electronic device processor module of the mobile electronic device configured to generate response data in response to the digital ping;

a mobile electronic device transmitter of the mobile electronic device configured to transmit the response data to a vehicle having the vehicle transmitter by way of a second wireless communications channel at a second frequency that is higher than the first frequency;

a vehicle receiver configured to receive the response data; and

a vehicle processor module configured to at least one of unlock doors of the vehicle and start the vehicle in response to receipt of the response data by the vehicle receiver.

7. The combined PEPS and wireless charging system of claim 6, wherein the digital ping is transmitted at a power level of at least 10 watts.

8. The combined PEPS and wireless charging system of claim 6, wherein the vehicle transmitter is configured to transmit the digital ping at a distance of 2 m-3 m.

9. The combined PEPS and wireless charging system of claim 6, wherein the second wireless communications channel is Ultra-Wideband Impulse Radio (UWB-IR).

10. The combined PEPS and wireless charging system of claim 6, wherein the vehicle transmitter is configured to generate an electromagnetic field to transfer energy to the mobile electronic device through electromagnetic induction to charge a battery of the mobile electronic device.

11. The combined PEPS and wireless charging system of claim 10, wherein the transfer of energy is initiated through the wireless charging protocol.

12. The combined PEPS and wireless charging system of claim 10, wherein the electromagnetic field is generated at an exterior of the vehicle to permit wireless charging of the mobile electronic device at an exterior of the vehicle.

13. The combined PEPS and wireless charging system of claim 6, wherein the mobile electronic device is at least one of a smartphone, wearable electronic device, a tablet computer, vehicle key fob, and a notebook computer.

14. A method for passive entry and passive start of a vehicle comprising:

transmitting a first signal from a vehicle transmitter of the vehicle to a mobile electronic device through a first wireless communications channel using a wireless charging standard;

wherein the first wireless communication channel is a first frequency channel, and the second wireless communications channel is a second frequency channel at a higher frequency than the first frequency channel;

receiving the first signal at a receiver of the mobile electronic device;

processing the first signal and formulating a second signal with a processor module of the mobile electronic device;

transmitting the second signal from a transmitter of the mobile electronic device to a receiver of the vehicle through a second wireless communications channel; and

unlocking doors of the vehicle or changing a power mode of the vehicle in response to receipt of the second signal at the vehicle.