TW201416259A - Externally-added type vehicle warning device - Google Patents

Abstract

The invention relates to an externally-added type vehicle warning device, comprising at least one external load and a relay control module. The relay control module comprises a power terminal, a grounding terminal, a first signal terminal and a second signal terminal. The first and second signal terminals of the relay control module are electrically connected to a CAN BUS system of a vehicle respectively, thus to receive a direct current voltage and a control signal from the CAN BUS system of the vehicle and to drive the external load in accordance with the control signal. Accordingly, only a few electric wires is used to connect between the vehicle warning device of the invention and the CAN BUS system of the vehicle, therefore wiring line configuration can be effectively simplified.

Description

External vehicle warning device

The present invention relates to a warning device, and more particularly to an external vehicle warning device.

At present, various vehicles, such as self-propelled buses, tour buses, towing vehicles, container trucks or connecting vehicles, etc., in addition to the original configuration of the lights, direction lights and brake lights, the driver can also add warning components as needed. For example, a bold LED (light emitting diode) lamp or buzzer can be added to the compartment of the container truck.

Referring to FIG. 4, the warning elements 41 are electrically connected to the control system 42 of the vehicle itself. When the driver activates the directional light, the directional light control signal generated by the control system 42 will drive the warning components together. 41. The warning elements 41 are caused to emit light or generate a buzzer.

The general vehicle control system 42 is provided in the driver's seat. However, the warning elements 41 are located at different positions of the vehicle, for example, at the front of the vehicle, at the rear of the vehicle or on both sides of the vehicle. As shown in FIG. 4, each of the warning elements 41 is connected to the control system 42 through separate wires 43. As the range of the warning elements 41 is distributed, the number of the wires 43 is also increased, particularly for the container truck. In the case of a large vehicle with a long body such as a junction car, the control system 42 must be connected to the warning elements 41 through the longer wires 43.

It can be seen that it is known that when the warning element 41 is applied to the vehicle, a plurality of wires 43 are required to electrically connect the control system 42 to the warning elements 41, so that the distribution of the wires 43 is too complicated and messy.

SUMMARY OF THE INVENTION A primary object of the present invention is to provide an external vehicle warning device that can be connected to a control system of a vehicle with a small amount of electric wires, so that the overall wiring effect of the present invention is simple and easy to implement.

The external vehicle warning device is applied to a CAN BUS system of a vehicle, the external vehicle warning device includes: at least one external load; and a relay control module electrically connected between the external load and the CAN BUS system The relay control module includes: a voltage regulator comprising a power terminal and a ground terminal, respectively electrically connected to the CAN BUS system to receive a DC voltage from the CAN BUS system, and convert the DC voltage into a Working voltage; a communication interface electrically connected to the voltage regulator to receive the operating voltage, and comprising a first signal input end and a second signal input end respectively electrically connected to the CAN BUS system to receive a CAN BUS system a control signal; and a controller electrically connecting the voltage regulator, the communication interface and the at least one applied load, the controller receiving the operating voltage from the voltage regulator, and receiving the control signal from the communication interface to The control signal drives the at least one applied load.

The relay control module of the present invention can be disposed at any position of the vehicle, and then the relay control module is externally connected with an external load or a plurality of external loads. When the CAN BUS system of the vehicle generates a control signal, the middle The controller group in the control module receives the control signal, and correspondingly drives the applied load according to the control signal, thereby showing that the relay control module is configured A relay station for signal transmission between the vehicle's CAN BUS system and the applied load.

It should be noted that the control module of the present invention is only connected to the CAN BUS system of the vehicle by using four terminals such as a power terminal, a ground terminal, a first signal terminal and a second signal terminal, that is, the control module of the present invention The vehicle's CAN BUS system uses only a small number of wires to connect; in addition, the wiring between the vehicle's CAN BUS system and the relay control module can be regarded as the first segment of wiring, between the relay control module and the external load The wiring can be regarded as the second length of wiring, whether it is the first wiring or the second wiring, the length is shorter than the length of the wire of the prior art in which the control system is directly connected to the warning component. Therefore, the wiring of the present invention has been greatly simplified compared to the prior art, and it is quite convenient to install or overhaul.

Referring to FIG. 1, the external vehicle warning device of the present invention is electrically connected to a CAN BUS (Controller Area Network Busbar) system 10 generally provided in the present vehicle, wherein the CAN BUS system 10 is used as various controls.

The CAN BUS system 10 includes a power terminal V+, a ground terminal GND, a first signal terminal CANH and a second signal terminal CANL. The CAN BUS system 10 outputs a DC power supply through the power terminal V+ and the ground terminal GND, and outputs a coded control signal through the first signal terminal CANH and the second signal terminal CANL, for example, when the driver starts the direction light. The control signal has a code that represents the directional light.

The control device of the present invention includes at least one external load unit 20, or further includes an operating unit 30.

Referring to FIG. 1 and FIG. 2 , the external load unit 20 includes at least one external load 21 and a relay control module 22 .

The applied load 21 can be a projection lamp, an LED (light emitting diode) lamp or a speaker, etc., and the external load 21 can be disposed at any place of the vehicle body according to different uses, for example, the external load 21 is used as an auxiliary device. The left direction light can be set on the left side of the vehicle body.

The relay control module 22 can be a controller area network bus (CAN bus) module electrically connected between the external load 21 and the CAN BUS system 10, and the relay control module 22 A voltage regulator 221, a communication interface 222 and a controller 223 are included.

The voltage regulator 221 includes a power terminal V+ and a ground terminal GND respectively electrically connected to the power terminal V+ and the ground terminal GND of the CAN BUS system 10 to receive the DC voltage from the CAN BUS system 10, and the DC voltage is Convert to working voltage.

The communication interface 222 is electrically connected to the voltage regulator 221 to receive the operating voltage, and includes a first signal input terminal CANH and a second signal input terminal CANL, respectively electrically connected to the first signal end CANH of the CAN BUS system 10 and The second signal terminal CANL receives the control signal sent by the CAN BUS system 10.

The controller 223 is electrically connected to the voltage regulator 221, the communication interface 222 and the external load 21, receives the operating voltage from the voltage regulator 221, and receives the control signal from the communication interface 222 to be driven according to the control signal. The applied load 21 is added. For example, the vehicle body is provided with an external load 21 as an auxiliary brake light, when the vehicle's CAN BUS system 10 outputs one The controller 223 receives the control signal from the CAN BUS system 10 and decodes the control signal to illuminate the applied load 21 based on the decoded control signal. At this time, the vehicle's own brake light and the applied load 21 are simultaneously illuminated, providing a significant brake warning effect.

In summary, the relay control module 22 serves as a signal transmission relay station between the external load 21 and the CAN BUS system 10, and the relay control module 22 is disposed at any place of the vehicle body, regardless of the middle. How far is the control module 22 from the CAN BUS system 10 of the vehicle, the relay control module 22 only passes through the power terminal V+, the ground terminal GND, the first signal input terminal CANH and the second signal input terminal CANL, etc. The terminals are electrically connected to the CAN BUS system 10 of the vehicle, which means that the invention and the CAN BUS system 10 of the vehicle need only be connected by four wires, and the wires are only two kinds of power lines and signal lines, which are relatively easy to identify. In addition, the wiring range can be expanded, and the wiring can be simplified and the practicality can be greatly improved.

Referring to FIG. 1 and FIG. 3 , the operation unit 30 includes an operation panel 31 and an operation control module 32 .

The operation panel 31 can be provided in the driver's seat, and the driver can operate the operation panel 31 by himself. The operation panel 31 is configured to generate a trigger signal corresponding to the external load 21 in the external load unit 20. Referring to FIG. 3, the operation panel 31 can include at least one button 310. The operation panel 31 generates the trigger signal when pressed by the driver.

The operation control module 32 can be a controller area network bus The controller area network bus (CAN bus) module includes a voltage regulator 321 , a controller 322 and a communication interface 323 .

The voltage regulator 321 includes a power terminal V+ and a ground terminal GND respectively electrically connected to the power terminal V+ and the ground terminal GND of the CAN BUS system 10 to receive the DC voltage from the CAN BUS system 10, and the DC voltage is Convert to working voltage.

The controller 322 is electrically connected to the regulator 321 and the operation panel 31 to receive an operating voltage from the regulator 321 and generate a control signal according to the trigger signal. Since the trigger signal corresponds to the applied load 21, The control signal can drive the corresponding applied load 21.

The communication interface 323 is electrically connected to the voltage regulator 321 to receive the operating voltage. The communication interface 323 includes a first signal output terminal CANH and a second signal output terminal CANL, which are electrically connected to the communication interface 222 of the external load unit 20, respectively. The first signal input terminal CANH and the second signal input terminal CANL transmit the control signal generated by the controller 322 to the external load unit 20.

For example, the applied load 21 may be a luminaire that does not need to be lit with the vehicle's own directional light or brake light, such as a projection light. The operating unit 30 can be provided with a button 310 corresponding to the projection lamp. When the driver presses the button 310, the projector lamp can be illuminated accordingly.

As described above, the operating unit 30 of the present invention is also electrically connected to the CAN BUS system 10 of the vehicle through the four terminals of the power terminal V+, the ground terminal GND, the first signal output terminal CANH and the second signal output terminal CANL. Since the load unit 20 is provided, the operation unit 30 can be externally connected by only four wires, and the wiring is easy and easy to implement.

Since the external load unit 20 and the operation unit 30 of the present invention can use the controller area network bus bus (CAN bus) module, the module has the advantages of stable signal and long transmission distance, so that the control signals can be in the vehicle. The CAN BUS system 10, the external load unit 20 of the present invention and the operating unit 30 are effectively delivered.

10‧‧‧CAN BUS system

20‧‧‧Additional load cell

21‧‧‧External load

22‧‧‧Relay Control Module

221‧‧‧ Voltage Regulator

222‧‧‧Communication interface

223‧‧‧ Controller

30‧‧‧Operating unit

31‧‧‧Operator panel

310‧‧‧ button

32‧‧‧Operation Control Module

321‧‧‧Regulator

322‧‧‧ Controller

323‧‧‧Communication interface

41‧‧‧Warning components

42‧‧‧Control system

43‧‧‧Wire

Figure 1 is a circuit block diagram of a control device of the present invention.

Figure 2: Detailed circuit diagram of the external load unit of the present invention.

Figure 3: Detailed circuit diagram of the operating unit of the present invention.

Figure 4: Block diagram of a known control system and warning component circuit.

10‧‧‧CAN BUS system

20‧‧‧Additional load cell

21‧‧‧External load

22‧‧‧Relay Control Module

221‧‧‧ Voltage Regulator

222‧‧‧Communication interface

223‧‧‧ Controller

30‧‧‧Operating unit

31‧‧‧Operator panel

32‧‧‧Operation Control Module

321‧‧‧Regulator

322‧‧‧ Controller

323‧‧‧Communication interface

Claims (9)

An external vehicle warning device is applied to a CAN BUS system of a vehicle, the external vehicle warning device includes: at least one external load; and a relay control module electrically connected to the external load and the CAN BUS system The relay control module includes: a voltage regulator including a power terminal and a ground terminal, respectively electrically connected to the CAN BUS system to receive a DC voltage from the CAN BUS system, and convert the DC voltage into a working voltage; a communication interface electrically connected to the voltage regulator to receive the operating voltage, and comprising a first signal input end and a second signal input end electrically connected to the CAN BUS system to receive from the CAN BUS system a control signal; and a controller electrically connecting the voltage regulator, the communication interface and the at least one external load, the controller receiving the operating voltage from the voltage regulator, and receiving the control signal from the communication interface, to The at least one applied load is driven according to the control signal. The external vehicle warning device of claim 1 includes: an operation panel for generating a trigger signal; and an operation control module comprising: a voltage regulator comprising a power terminal and a ground terminal; Electrically connecting the CAN BUS system to receive the DC voltage from the CAN BUS system and converting the DC voltage into an operating voltage; a controller electrically connecting the voltage regulator to the operation panel, the controller is stable The voltage converter receives the operating voltage and generates according to the trigger signal a control signal; and a communication interface, comprising a first signal output end and a second signal output end, respectively electrically connecting the first signal input end and the second signal input end of the communication interface of the relay control module, The control signal generated by the controller in the operation control module is transmitted to the relay control module, so that the relay control module correspondingly drives the external load. The add-on vehicle warning device according to claim 2, wherein the relay control module and the operation control module are respectively a controller area network bus (CAN BUS) module. The external vehicle warning device according to any one of claims 1 to 3, wherein the controller of the relay control module decodes the control signal to drive the external load. In addition to the additional vehicle warning device of claim 2 or 3, the operation panel includes at least one button for generating the trigger signal. An add-on vehicle alerting device as claimed in claim 4, the applied load comprising a luminaire. An add-on vehicle alerting device as claimed in claim 4, the applied load comprising a speaker. In addition to the additional vehicle warning device of claim 5, the applied load includes a luminaire. An add-on vehicle alerting device as claimed in claim 5, the external load comprising a speaker.