JPS59230874A - Signal transmitter for motorcycle - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a signal transmission device for a motorcycle, and more particularly to a signal transmission device for a motorcycle that eliminates wire harnesses around the handlebars to save wires.

FIG. 1 is a side view showing the configuration of a conventional motorcycle B. In the figure, t'B1 is a handle, B2 is a front fork, B3 is a head pipe, 84 is a tie t7, and B5 is a main pipe. A wire harness B6 is wired along B5. This wire harness B6 passes beside the head pipe B3 and is connected to various switch means provided on the handlebar B1, and output signals from these switch means are sent to the front or rear of the vehicle body via the wire harness B6. It is supplied to the burnt lamps and makes these lamps blink.

By the way, in the conventional signal transmission device J3, in order to transmit the output signals of the independent switch means,
If 0 signal lines and 1 common line are required, and 1 power supply line is included, a wire harness consisting of iln+2 lines is required to transmit n types of signals. For this reason, as the number of signals increases, the wire harness becomes thicker, which restricts the degree of freedom of wiring and is unfavorable in appearance, requiring a cover or other concealment.

In view of the above-mentioned circumstances, this invention provides a signal transmission device for motorcycles with an improved appearance, which converts electrical signals conventionally transmitted through a wire harness into ultrasonic waves, and transmits these ultrasonic waves into main pipes. It is characterized by transmitting various signals by avoiding propagation through pipes such as

Hereinafter, the present invention will be described in detail based on the drawings.

Fig. 2 is a side view showing the relationship between an embodiment of the present invention and the integrated structure, Fig. 3 is a perspective view showing the structure around the handle of the embodiment, and Fig. 4 is a block diagram showing the configuration of the embodiment. It is. In these figures, 1, 1A, IB are the main pipes, 2
is the handle pipe, 21.2R is the left and right handle holder, 4a is the top bridge, 4b is the head pipe, 4C
is the bottom bridge, 4d is the front 1-) A-ri, 4e is the down tube, 7a is the sea 1-17b is the seat rail, 7C beam A stay, 7d is the rear a-ri, 8a is the rear cowl, 9a and 9b are the tires. , 10a is the engine,
10b is a tank, and 10C is a valve. Here, main pipes 1A and 1B extending rearward from the upper and lower ends of the head pipe 4b are connected to the upper end of the front end of the engine 10a.
It merges into one pipe at F, and branches into two pipes again at 1G behind the engine 10a. And these pipes communicate with each other.

Next, the configuration of the main parts of this embodiment will be explained based on FIGS. 2 to 4. First, the main pipe 1A and the handle pipe 2 are connected by a flexible pipe 3. That is, one end of the hollow flexible pipe 3 is connected to the through hole 2a formed between the handle holders 2L and 2R at the center of the handle pipe 2, and the other end passes through the front of the top bridge 4a and connects to the main body. pipe 1
It is connected to a through hole 1a formed near the front end of A. Here, the handle holders 2L, 2R and the first bridge 4a are integrally formed. Also, each weld joint IF of the main pipe 1.

1G is formed with a through hole 11 shown in FIG. 5, which allows the pipes 1 to 3 to communicate with each other. Next, a through hole 1C is formed in the center of the main pipe 1, and a transducer 5-1 is inserted into the through hole 1C via a rubber 5-18 as shown in FIG. I'm being kicked. This rubber 5-18 is provided so that the ultrasonic waves emitted from the transducer 5-1 are propagated not by the metal forming the main pipe 1 but by the air inside the pipe. 1 to rubber flow 1 to 1. Moreover, the transducer 5-1 receives a transmission pulse (
It converts the ultrasonic wave (electrical signal) into an ultrasonic wave and emits this ultrasonic wave into the main vibrator 1, while receiving the ultrasonic wave propagating inside the main pipe 1 and converting it into a received pulse (electrical signal). It is supplied to the transmitting/receiving circuit 6-1. This transmitting/receiving circuit 6-1
has the configuration shown in FIG. 7, and the transmission pulses supplied from the transducer 5-1 are supplied to the waveform processing unit W via the switch SW. This switch SW switches between receiving and transmitting, and is usually set on the receiving side.
Switched to the transmitting side immediately before ultrasonic emission. Further, the waveform processing unit W shapes the waveform of the received pulse, and the control unit C
supply to. The control unit C analyzes this received pulse to form a control signal and applies this control signal to the amplifier A+”An. On the other hand, the input signals applied to the input terminals IN+ to INm of the control unit C The transmission pulse is formed into a transmission pulse at the driver D, and this transmission pulse is amplified at the driver D and supplied to the transducer 5-1 via the switch SW.
Returning to the figure, a neutral switch 11 is connected to the input terminal IN+ of the control section C of the transmitting/receiving circuit 6-1, and a starter relay 12 is connected to the output terminal of the amplifier A4.

Next, a through hole 1d is provided near the rear end of the main pipe', and a transducer 5-2 is attached to this through hole 1d in the same manner as described above. And the transducer 5-
2 has the same configuration as the above-mentioned transmitting/receiving circuit 6-1,
A transmitting/receiving circuit 6-2 installed in the rear cowl 8a is connected, and the right rear blinker lamp 13R is connected to the output terminal J of the amplifier A5, the left rear blinker lamp 13m is connected to the output terminal of the amplifier A5, and the left rear blinker lamp 13m is connected to the output terminal of the amplifier A5. ．． Δ3. Stop and tail lamps 14 are connected to the output ends of Δ8, respectively. Further, a through hole 2b is formed on the right side of the handle pipe 2, and a wave transmitter/receiver 5-3 is attached to this through hole 2b in the same manner as described above. The transducer 5-3 has a switch housing 5WHRk: iR digit transceiver circuit 6-
3 is connected, the high output end of the lighting switch 15 is connected to the man saw end IN2, and the same switch 1 is connected to the INS.
The low output end of 5 is the starter switch 16 at IN4.
The output ends of are connected to each other. On the other hand, a through hole 2C is formed on the left side of the handle pipe 2, and a transducer 5-41
A transmitting/receiving circuit 6-4 is provided in the same manner as above. The right output terminal R of the turn signal switch 17 is connected to the input terminal INs of the transmitting/receiving circuit 6-4, the left output terminal of the same switch 17 is connected to IN6, and the horn switch 1 is connected to INF.
Eight output terminals are connected to each other. Next, a through hole 3a is formed in the flexible pipe 3, and a transducer 5-5 is attached thereto. Further, a transmitting/receiving circuit 6-5 is provided on the bottom bridge 4G in front of the head pipe 4b (FIGS. 2 to 4). Note that the transmitting/receiving circuit 6-5 may be installed within each case of the meter 20 or the headlight 21. A neutral lamp 2 is attached to the output terminal of the amplifier A1 of the transmitter/receiver circuit 6-5.
0a is connected, the headlamp 21 is connected to the output terminals of amplifiers A2 and A3, the right front blinker lamp 23R is connected to the output terminal of amplifier A5, the left front blinker lamp 23L is connected to the output terminal of amplifier A5, and the left front blinker lamp 23L is connected to the output terminal of amplifier A5. A horn 24 is connected to each output end of A7.

In addition, the above-mentioned transducers 5-1 to 5-5,
) The vessels 6-1 to 6-5 are the same. Further, at the ends of the main pipe 1 and the handle pipe 2, a sound absorbing material 25 is attached to the inner wall of the pipe as shown in FIG. Ij
``Prevents reverberation and rebound of ultrasonic waves propagating inside the C-pipe.

Next, main pipe 1. The ultrasonic signal 3u propagating within the handle pipe 2 and flexible pipe 3 is shown in FIG. There is a l case. In other words, ultrasonic signal 3u
consists of ultrasonic pulses P+ for synchronization, P2, etc., and ultrasonic pulses 81 to SJ for switch signals which are 1''/11011 corresponding to A/A) of each switch, and ultrasonic pulses P+ and The interval of P2 is set to a time of 1.5To, and the intervals of the ultrasonic pulse P2 and each of the ultrasonic pulses S+ to SJ are set to a time To. These ultrasonic pulses P+*P2*S+ to SJ constitute one cycle, and the period T1 thereof is (2,5+J)To. Also, the correspondence between the ultrasonic pulse S+=SJ and each switch, each switch and the input terminal IN+-INIII of the control unit C
, amplifiers A1 to Δ11 and controlled elements 12 to 14.2
The correspondence with 0a and 21.23.24 is shown in Table 1.

In Table 1, for example, when the neutral switch 11 is turned on, this on signal is supplied to the input terminal IN+ of the control section C of the transmitter/receiver circuit 6-1, and is sent from the transducer 5-1 to the main pipe 1 as an ultrasonic pulse S1. fired inside. Then, this ultrasonic pulse S1 is transmitted to the transducers 5-2 to 5-5.
is received by the amplifier A1 of each transmitting/receiving circuit 6-2 to 6-5.
It is output as a ``1'' signal to the amplifier A.
The neutral lamp 20a connected to + is lit.

The operation of this embodiment will be explained below using a specific example.

First, under normal conditions, the synchronizing ultrasonic pulse P+ shown in FIG.
, P2 are emitted from the transducer 5-1 to the main pipe 1, and this ultrasonic pulse P+, P2 is transmitted to each transducer 5-2 to
The signal is received by each of the transmitting/receiving circuits 6-2 to 6-5 via the transmitting/receiving circuit 6-5, thereby synchronizing the respective transmitting/receiving circuits 6-1 to 6-5. That is, the control unit C of the transmitter/receiver circuit 6-1 transmits a pair of transmit pulses every period T+ (these transmit pulses correspond to the ultrasonic pulses P+ and P2, and the time interval is 1.
5T) is supplied to driver D. As a result, the driver D drives the transducer 5-1 via the switch SW, and thereby the transducer 5-1 is connected to the tine pipe 1.
Ultrasonic pulses P+ and P2 are emitted within. and,
These ultrasonic pulses P+ and P2 are applied to the main pipe 1. Handle pipe 2. The waves propagate through the flexible pipe 3 and are received by the transducers 5-2 to 5-5. For example, the ultrasonic pulses P+ and P2 received by the transducer 5-2 are converted into electrical signals (received pulses) by the transducer 5-2, and then transmitted through the switch SW of the transducer circuit 6-2. Waveform processing section W
supplied to This waveform processing section W shapes the received pulse into a waveform and supplies it to the control section C, and the control section C detects the time interval of the received pulse. And this time interval is 1.5T
, the controller C controls the ultrasonic pulse P+
, P2 is received. Also, other transmitter/receiver circuit 6
The control units C of -3 to 6-5 also make similar determinations, and thus the respective transmitting/receiving circuits 6-1 to 6-5 are synchronized.

Next, the operation will be explained using an example in which the lighting switch 15 is set to high. In this case, the ``11'' signal is supplied to the input terminal IN2 of the control unit C of the transmitting/receiving circuit 6-3.As a result, the control unit C transmits the switch SW at the time 2To has elapsed after receiving the ultrasonic pulse P2. side and supplies a transmission pulse (this transmission pulse corresponds to the ultrasonic pulse S2) to the driver D.Then, the driver D drives the transducer 5-3 via the switch SW, As a result, the ultrasonic pulse S2 is emitted from the C transducer 5-3 to the handle pipe 2.The switch SW is immediately switched to the receiving side after emitting the ultrasonic pulse 82. The emitted ultrasonic pulse S2 is transmitted to the same pipe 2.Flexible vibe 3.
．． It propagates through the main pipe 1, and each transducer 5-1.5-2
The wave is received at ゜5-4.5-5. Then, in each transmitter/receiver circuit 6-1.6-2.6-4.6-5, reception processing similar to that for the ultrasonic pulses P+ and P2 described above is performed. That is, each control unit C measures the time interval between the received pulses corresponding to the ultrasonic pulse P2 and the ultrasonic pulse just received, and since this is 2To, it recognizes that the ultrasonic pulse just delivered is S2. do. And ultrasonic pulse S2
A signal "1" is output to the output terminal of the amplifier A2 corresponding to the output terminal of the amplifier A2.

As a result, the headlamp 21 is turned on by the amplifier A2 of the transceiver 6-5, and the stop and tail lamp 14 is turned on by the amplifier A2 of the transceiver circuit 6-2. Also,
The on/off operations of the other switches are converted into ultrasonic pulses 81 to SJ in the same manner as above, and transmitted through the respective pipes 1 to 3. Then, each controlled element 12 to 14.21a, 21.23 is inversely converted in the C1 transmitting/receiving circuit 6-1 to 6-5.
．． 24 on/off. 15. In the above embodiment, only the on/off of a switch was dealt with, but analog quantities such as the output of a fuel gauge or thermosensor can also be converted into digital signals and transmitted as ultrasonic pulses. can be processed by converting it back into an analog quantity.

Furthermore, in this embodiment, the flexible pipe 3 is installed between the main pipe 1A and the handle pipe 2 in J3, but the flexible pipe 3 is installed between the main pipe 1B and the handle pipe 2.
= J number) functions in exactly the same way.

As explained above, the present invention converts the A/A wave of each switch into ultrasonic waves, thereby converting the A/A wave of each switch into ultrasonic waves.
Since the A-fu is transmitted to each part of the car body, the wire harness around the steering wheel can be removed, and as a result,
This has the advantage that the wiring work can be done in a very timely manner.

[Brief explanation of the drawing]

Fig. 1 is a side view showing the installation of a wire harness in a conventional motorcycle (J state), Fig. 2 is a side view showing the relationship between this embodiment and the vehicle body, and Fig. 3 is a side view showing the relationship between this embodiment and the vehicle body. FIG. 4 is a block diagram showing the structure of the same embodiment; FIG. 5 is a sectional view showing the through hole 1b formed in the welded joint of the main pipe 1; FIG. 6 is a perspective view showing the structure around the handle. (a) is a sectional view showing the state of the transducers 5-1 to 5-5 attached to each pipe, and (b) is a state of the sound absorbing material 25 attached to the inner wall of the end of each pipe. A cross-sectional view showing the state of the resonance chamber 26 attached to the end of each pipe,
FIG. 7 is a block diagram showing the configuration of the transmitting/receiving circuits 6-1 to 6-5, and FIG. 8 is a waveform diagram showing the configuration of the ultrasonic signal 3u propagating in each pipe. 1...Main pipe, 2...Handle pipe, 3...~Flexible pipe, 5-1~
5-5... Transducer/receiver, 6-1 to 6-5...
...Transmission/reception circuit. Applicant Honda Motor Co., Ltd.

Claims (1)

[Scope of Claims] (a) A main pipe with a through hole in the welded joint, a handle pipe, (0) a flexible pipe that connects the main pipe and the handle pipe, and (a) a flexible pipe that connects the main pipe and the handle pipe; a transducer that converts the electric signal into an ultrasonic wave and emits it into each of the vibrators, while receiving the ultrasonic wave propagating in each of the pipes and converting it into an electric signal; (e) A switch means connected to each of the transducers, forming a control signal based on the electric signal supplied from the transducer, and supplying the control signal to the controlled element, and connected to the input end. 1. A signal transmission device for a motorcycle, comprising a transmitting/receiving circuit that forms an electric signal to be supplied to the transducer based on a signal supplied from the transducer.