Electronic key system of vehicle

An electronic key and vehicle technology, applied in the field of electronic key systems, can solve problems such as vehicle control, difficult judgment of portable devices, and influence of electronic key system actions, and achieve the effect of suppressing wrong actions

Inactive Publication Date: 2013-06-26
KK TOKAI RIKA DENKI SEISAKUSHO
View PDF7 Cites 14 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this case, it is difficult to properly determine the position of the portable device, so it is easy to affect the operation of the electronic key system of the vehicle, for example, it is impossible to perform appropriate vehicle control according to the position of the portable device, etc.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Electronic key system of vehicle
  • Electronic key system of vehicle
  • Electronic key system of vehicle

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0031] Below, refer to Figure 1 ~ Figure 6 An embodiment of the electronic key system for a vehicle of the present invention will be described.

[0032] Such as figure 1 As shown, in the electronic key system for a vehicle of this embodiment, various communication controls are performed through wireless communication between the portable device 1 carried by the user and the in-vehicle device 2 mounted on the vehicle.

[0033] Among them, the portable device 1 includes a receiver 10 that receives wireless signals transmitted from the in-vehicle device 2 and a transmitter 11 that transmits wireless signals to the in-vehicle device 2. When the receiver 10 receives the wireless signal transmitted from the in-vehicle device 2, it performs reception processing on the wireless signal, and outputs the wireless signal to the portable device control unit 13 that performs various controls on the portable device 1. In addition, the receiver 10 is provided with an RSSI circuit 12, and the RSS...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention provides an electronic key system of vehicles, wherein wrong actions are inhibated in an environment with noise peaks. According to the electronic key system, portable equipment is positioned in the communication area of vehicle equipment, wireless communication is provided between vehicle equipment and portable equipment, portable equipment receives a wakeup signal from the vehicle equipment and measures the RSSI value, the reponsive signal containing the measurement result is sent to the vehicle equipment, the vehicle equipment determines the position of the portable equipment in the communication area according to the RSSI value in the responsive signal, and vehicle control corresponding to the determination result is carried out. Portable equipment provides three times of detection to the RSSI value of the wakeup signal. In addition, the vehicle equipment determines the position of the portable equipment according to the mean value of two RSSI values in the three detected RSSI values except the largest one.

Description

Technical field [0001] The present invention relates to an electronic key system that performs various controls of the vehicle through wireless communication between the vehicle and the electronic key. Background technique [0002] The so-called electronic key system in which a user carrying a portable device (electronic key) touches the door handle of the vehicle to unlock the door, and the user presses and operates an engine switch provided on a dashboard (dashboard) to start the engine is well known. Conventionally, as such an electronic key system, for example, a system described in Patent Document 1 is known. [0003] In the electronic key system described in Patent Document 1, a plurality of transmitters are provided for transmitting wireless signals to a plurality of communication areas installed outside and inside the vehicle. Then, when the user touches the door handle of the vehicle, the first wireless signal is transmitted from each transmitter. Then, as soon as these ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): E05B49/00
Inventor 小盐由佳里森裕史川村将之
Owner KK TOKAI RIKA DENKI SEISAKUSHO
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap