JPS5975850A - Remote control unit with operation section in steering wheel - Google Patents

Abstract

PURPOSE:To enable remote control that can easily be remotely controlled using the conventional single signal line by providing various operation switches in a steering wheel. CONSTITUTION:An operation section 10 provided in a steering wheel and a receiving section 50 provided at a car body side are connected using a single signal line 40. The operation section 10 is comprised with an input switch section 20 for remote operation and a signal voltage conversion section 30 that converts the voltage applied from the receiving section to the signal line into different voltage levels corresponding to the operation status of the switch 20 and the receiving section 50 is comprised with a voltage level decision section 60 that decides the voltage levels on the signal line 40 converted by the signal voltage conversion section 30 and a feeding section that feeds power to a specific and intrinsic load depending upon each voltage level corresponding to the decision signal of the voltage level decision section. Since remote control is made possible using the single line like this, the number of sliding contacts is reduced to one and the wiring between rotary and fixed sections is simple.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a remote control device having an operating section on a steering wheel. Specifically, in order for the driver of a car to perform steering operations (-1) an operation unit is installed on the circular or round-shaped steering wheel that applies rotational force by direct touch, and a receiver and load are installed on the car body side. (
J. The remote controller is capable of performing remote operations from the operation unit, and is related to the remote controller.

Conventionally, only the horn switch was installed on the instep of the steering wheel.

This requires the installation of a sliding contact or a four-person coil cord for signal transmission between the rotating part of the steering wheel and the vehicle body where the load is installed, and the installation of a large-scale device on the steering wheel. ), the system is configured so that only the essential horn operations can be performed when operating the steering wheel.

However, in general, as the electronics of automobiles progress, electrical operations become more diverse. Therefore, it is desirable to be able to control the electrical system easily and safely even when the vehicle is running or when operating the steering wheel. To this end, it is desirable to provide various operating units on the steering wheel closest to the driver.

However, in order to provide various operating sections on the steering wheel, due to mounting issues, the operating section must have an extremely simple structure, and the rotating section of the steering wheel must be opposed to the receiving section, which is the stationary section. The wiring for connection is complicated, and in some cases, many sliding contacts are used, which is not desirable in terms of reliability.

Therefore, it is desirable that the number of signal lines connecting the operating section and the remote receiving section be as small as possible.The present invention has been made from this viewpoint.

That is, an object of the present invention is to provide an operation section that provides various operation switches on the steering wheel section, allows easy remote control even when operating the steering wheel, and has a simple structure, and that does not require the signal line of the conventional Jli-. The object of the present invention is to provide a remote control device that can be operated remotely using a remote controller.

The present invention comprises an operating section provided on an automobile steering wheel, and a single signal line connecting the operating section and the receiving section, such as a receiving section provided on the vehicle body side, The operation section has an input switch section for operation of the spider 1 to input the voltage applied to the single signal line from the receiver 15 section, and inputs a voltage applied to the single signal line from the input switch section for operation. a signal voltage conversion section that converts the voltage level into a voltage level, and the reception section includes a voltage level judgment section that judges the voltage level on the single signal line converted by the signal voltage conversion section; and a power supply unit that supplies power to a specific load specified by each voltage level in response to a determination signal output from the level determination unit.
Controller 1 consists of a roll device.

FIG. 1 is a block diagram showing the concept of the present invention in a block diagram. The present invention glue 7-1 to controller 1 is equipped with a roll "1" [J, mainly a single signal line 4 such as the operating section 10.
0 and a receiving section 50.

The operating section 10 is provided in the slurring wheel section. The term "steering wheel" as used herein refers to a circular or round-shaped component that is rotated and rotated by the driver of the vehicle with his or her hand to steer the vehicle. Steering wheel (consisting of an outer ring part, a central boss part, and spoke parts that connect them).
t) is acceptable. That is, it has a simple structure so that it can be installed anywhere. The operating section 10 has the function of manually inputting an operating signal by the driver of the vehicle, and generating a corresponding signal on the single signal line 40. Specifically, the operation section 10 includes an input switch section 20 and a signal type pressure-changing J-strip section 30. The input switch section 20 is, for example, a button switch, a snap switch, etc., which can be operated directly by the driver of the vehicle by manual input. The signal voltage converter 30 is configured with a passive circuit that itself does not require a drive voltage.

The signal voltage converter is connected to the receiver 5 via a single signal line 40.
A constant voltage is supplied from 0. The supplied voltage is then converted into signals with different voltage levels depending on the operating state of the input switch section 20. J' This is the only signal line that electrically connects the operating section installed on the ring wheel and the receiving section installed on the vehicle body. However, the ground line (there is also a separate system C). In the middle of the signal line 40, there is generally a sliding contact or a signal transmission mechanism such as a coupler.

The receiving unit 50 is a device that is installed on the vehicle body side, receives an operation signal from the single signal line 40, supplies mino j to the loads 80, and operates each load.

The receiving section 50 includes a voltage level determining section 60 and a power supply section 70 that supplies power to the load. The voltage level determining unit 60 has a function of determining the voltage applied to the signal line 40 from the receiving unit 50 when it is converted to a specific voltage level by the operating unit 10. That is, it has a function of determining which voltage level the voltage level generated on the signal line 40 is. Then, determination signals corresponding to each are outputted to the power supply unit 7o.

The power supply unit 70 has a switching function that receives a signal corresponding to the specific voltage level and supplies power to a load specified by the specific voltage level.

The load 80 includes a plurality of loads 81, 82, etc. specified by a plurality of voltage level types, and is connected to a power supply unit. Each load is operated by being supplied with power by switching the power supply section using the vehicle's on-board battery as a power source.

In this manner, the present invention attempts to enable remote control of multiple operations using a single signal line. The transmitted signals are then specified by different voltage levels. Furthermore, as will be explained in detail in the embodiment, the signal line 40 does not need to maintain a specific voltage level while the load is operating, and by providing a voltage holding circuit in the voltage level determining section 60, the signal line 40 does not need to maintain a specific voltage level while the load is operating. It is also possible to provide a pulse signal of the same voltage level that gives the start time and operation stop time. That is, it is also possible to adopt a time-division system in which a signal for operating a specific load can be released and a signal for operating another load can be transmitted.

Hereinafter, tree 5 will be explained in detail based on an example.

FIG. 2 is an electric circuit diagram showing a specific embodiment of the remote control device of the present invention. The blocks surrounded by one-dot chain lines correspond to the blocks in FIG. 1, and a specific circuit diagram of each block is shown.

In this embodiment, the switch section 20 consists of three operating switches 21, 22, and 23.

The operation switch is a push button switch, which can be turned on by manual operation, remains on, and released by manual operation. Each pushbutton is connected in parallel between the signal line 40 and ground,
Of the pushbutton switches inserted into each parallel circuit, 21 is grounded, 22 is grounded via a constant voltage element made of a Zener diode, and 23 is connected to a constant voltage at a different level from the constant voltage of the previous element. It is grounded via a Zener diode 33 that maintains voltage. In the case of this embodiment, two identical Zener diodes are connected in series.

On the other hand, the signal line 40 is connected to an on-vehicle battery 75 via a resistor Ro. The voltage level determining section 60 is configured to be able to determine three voltage levels generated in response to the operations of the three input switches described above, and uses comparators 61, 62, and 63 as the main elements. The voltage signal of the signal line 40 is input to the inverting input terminal of each comparator. Further, the non-inverting input terminal of the comparator 61 receives the Zener voltage of the Zener diode 611 which is supplied with power from the C vehicle battery 75 via the resistor R+ and generates a predetermined constant voltage. Also, the non-inverting input terminal of the comparator 62 receives the reference voltage generated by the Zener diode circuit 12 which provides different voltage levels as before.

Similarly, at the non-inverting input terminal of the =1 amparator 63, there is a Zener die A"-Dro1 that holds a voltage level different from the one indicated by -.
The reference voltage generated by 3 is input.

The output signals of each comparator are input to AND circuits 6011, 602, and 603 through the wiring shown in the figure. The output of each ANO circuit 601, 602, 603 is transmitted from transistors Tr1.1'r2. Ding r
3 is input at each base end. Relays 71, 72, and 73 are inserted into the collector circuit of each transistor, and these relays are connected to the positive terminal of the vehicle battery -75. The relays 71, 72, and 73 have respective relay contacts 71a, 72a, and 73, respectively.
Activate a. A load 81 is connected in series to the relay contact 71a.
is connected, and the power from the on-board battery 75 is transferred to the load 81.
Power is supplied to the Similarly, the second load 82 is also powered 1)
are connected in parallel so that

The same applies to the third load.

Next, the operation of the above configuration will be explained.

If only the push button switch 21 is turned off, the voltage on the signal line 42 becomes Ov. Also, the push button switch 22
If only the zener diode 32 is turned on, the voltage becomes 4V.
Since it is composed of Zener diodes, a 4V signal is generated on the signal line. Similarly, if only the push button switch 23 is turned on, the Zener diode 33
is composed of 8 ■ 1-pin voltage, so the signal line 4
2, a voltage of 8■ is induced. In addition, Zener generators are used to generate respective reference voltages so that the base W voltage of each =1 inverter in the voltage level determination section is 2V for comparator 61, 6V for comparator 62, and 10V for comparator 63, as shown in FIG. A diode is selected.

At this point, the input switch 21 for each comparator is pressed and O
If a potential of V is applied to the inverting input terminal, this signal voltage is equal to the respective reference voltage vl.

V2. All are smaller than V3. Therefore, all outputs of the C comparators become high level. Then the AND circuit 60
1 inputs the outputs of each comparator as they are, so the output of only the AND circuit 601 becomes high level, and therefore only the transistor Tr1 connected thereto is turned on or not. For this reason, current flows through the relay 71, closing the relay contact 71a and supplying power to the load 81.

Next, when the push button 22 is operated, a voltage of 4V is generated on the signal line 40, and this is input to the inverting input terminal of each comparator. Then, since only the input signal of the comparator 61 becomes higher than the reference voltage, the output of the comparator 61 becomes a low level. However, comparator 62,6
No. 3 has a higher reference voltage, so its output is at a high level. Therefore, only the output of the AND circuit 602 which inverts only the output of the comparator 61 and inputs -C becomes high level. Therefore, only the transistor 1''r2 to which this output is connected is activated, and only the load 82 is supplied with power, as in the above explanation.

Next, when only the push button switch 23 is pressed, the signal line 4
2 is given a voltage of 8 to 1, and therefore comparator 6
The inverting input terminals of 1 and 62 are connected to the reference voltage V + , V
Since it becomes higher than 2, the outputs of the comparators 61 and 62 become low level. Since the reference voltage V3 at the input of the comparator 63 is higher, the output of the comparator 63 is at a high level.

Therefore, only the output of the AND circuit 63, which inverts and inputs the two outputs of the Nhalators 61 and 620, becomes a high level, turning on only the transistor Tr3 connected to it, and supplying power only to the load 83. be able to.

When all three pushbutton switches 21, 22, and 23 are turned off, the signal line has the full voltage 1 of the on-board batch leaf 5.
Since 2V is applied, 12V is applied to the inverting input terminal of each comparator 61-63. Therefore, all the comparator signals have reference voltages Vl, V2 . Since the total voltage is higher than V3, the output of each comparator becomes a low level.

For this reason, the output of each AND circuit 601, 602, and 603 becomes a low level, and transistors 1-rl.

Tr2. Each of Tr 3 is turned off. When the input switch is turned off in this manner, the power supply to each load is cut off.

In this way, according to this embodiment, by setting four signal levels on a single signal line, it is possible to control the power supply to three loads.

Next, a second embodiment will be described.

FIG. 4 specifically represents an electric circuit diagram of the remote control device according to the second embodiment. As in the previous embodiment, the dash-dotted line blocks correspond to the blocks in FIG. Also, the cables having the same structural functions as those in the first embodiment are given the same numbers and symbols. Here, only the differences from the first embodiment will be explained. First, the voltage level determination section 60 is provided with binary jJ counters 651, 652, and 653, which are voltage holding circuits, respectively.

On the other hand, the input switch section 20 is composed of five automatic return type push button switches 201, 202, and 203. That is, when operating the load, the push button is pressed once, and the resulting operation signal is stored at -H in the voltage holding circuit to operate the load. For this reason, even if the pushbutton switches are released, power continues to be supplied to the load. Then, by operating another switch, the specified load can be activated. To stop operation of a specific load, turn the specific on-horn switch to A again. Then, the specific voltage holding circuit described above changes to the relet state, and the power supply to the load can be stopped. As described above, in the previous embodiment, it was not possible to operate other operation switches during the time when one load was activated.

However, in this embodiment, other loads can be activated and deactivated even when one load is activated. That is, the input switch section is configured to send out only a signal to start and a signal to stop power supply to the load. Further, the signal voltage converter 30 includes resistors 301, 302 .
A reference voltage is generated by resistance division between 303 and a resistor Ro connected in series. The output voltage determination section uses a so-called window comparator. The first signal generated by the switch 201 that provides the first signal is
A first window comparator 61a whose signal is input to each window comparator and whose signal falls within a predetermined voltage range.
Only 61b and 61b output a high level signal. The same applies to other signals. The reference voltage of each window comparator is set as follows. As shown in FIG. 5, a high level reference voltage of VI-1+ is applied to the non-inverting input terminal of the first window comparator 61a.
A reference voltage of VL+- is input to the inverting terminal of b.

Specifically, VLl is Ov, and Vl-1+ Lt
4V. Similarly, the second window comparator 6
2a and 62b have a3, 62a's non-inverting input terminal, tVl-1zr, 62b (7) inverting 1 child has &V
It is Lt. Specifically, V H2 is 8v, and v[-
2 is 4V. Third comparator 63a, 63b
Similarly, the non-inverting input terminal of 63a is V L even if J3 is in
i3's 11v, -63b inverted)] end: Ha VL3 (
7) 8■ is input. In this way, the reference voltages are set by dividing the voltage of the vehicle battery 75 by resistance. On the other hand, when the push button switch 201 is pressed, a voltage of 2V is generated on the single signal line 40. Further, when only the push button 202 is pressed, a voltage of 6V is generated on the signal line 40. The configuration is such that when the push button 203 is pressed, a voltage of 10V is generated in a single signal line. If the first push button 201 is operated here, the signal line 2 is input, so only the output of the first winbin 1 inverter becomes high level. The second and third window comparators are at low levels because they are outside of that range. Therefore, only the T-type flip 70 tube circuit 651, which is a voltage holding circuit, is set. It is assumed that this Noritsubu flop circuit is first reset by receiving a relet signal at the time when the operation starts for the first time. Therefore, when the Q terminal of the Noritub flop 651 is positive, the transistor Trl is turned on, and power is supplied only to the load 81 as in the previous embodiment. In this case, even if the pushbutton switch 201 is released and the signal line 4o goes to a high level of 12V, it will be out of range for each window comparator, so its output will be at a low level, and the output will be at a low level. Only flop 651 remains set. For this reason, power is supplied only to the load 81.

Next, when the pushbutton switch 201 is pressed again, the signal II
A voltage of 2■ is generated at fA40, and the first winbini 1
The comparator again makes its output high.

Therefore, the 797171177 circuit 651 counts the second pulse and changes from set to hit state. Therefore, the 1-run sister rr I is turned off, the current of the relay 71 is cut off, the relay contact 71a is released, and the power supply to the load 81 is cut off.

Similarly, the second window comparators 62a and 62b output a high output signal when the signal voltage is between 4V and 8V to set the Noritsu flop 652.

When the Noribu flop circuit 652 becomes a high level state, the transistor 1r2 is activated and current flows to the load 82.

Furthermore, the push button switch 202 is operated once again and 6
When the signal v is output, the Noritsubu flop circuit 652 receives the second pulse and enters the reset state, turning off the transistor 1-rz and cutting off the supply of power to the load.

In this way, this embodiment C counts two pulses,
Binary state holding circuits 651 to 653 capable of outputting a reset state and a reset state are respectively provided. Release from that signal voltage. Then, the next signal of the same voltage level is sent to the voltage holding circuit, and the voltage holding circuit enters the reset state, thereby stopping power supply to that particular load.In this way, - (Different loads can be applied at the same time.

The specific circuits used in the first and second embodiments above represent one specific example, and the present invention is not necessarily limited to these circuits. Furthermore, the method of determining the base ttt voltage and the signal voltage is not limited to these values. Furthermore, although the operation signal is explained using three examples, it is not limited to this. For example, by using the forward voltage of a diode, finer voltage divisions can be established to transmit and receive a large number of signals. It is also possible to do so. Also, since both the operating section and the receiving section are powered by the same power source, even if the voltage of the power supply section fluctuates, the relative level will fluctuate. , does not have any impact.

In summary, the present invention provides an operating section with a simple structure on the steering wheel of an automatic vehicle, and transmits operating signals through a single signal line in order to supply power to the receiving section and load. The control signal is transmitted according to the voltage level.

Therefore, the operation section is extremely l1iS! Since it can be easily configured, eight units can be arranged on the steering wheel. Since multiple operating signals can be sent through through-line signal lines and a specified load can be remotely controlled, only one sliding contact is required, and wiring between the rotating and fixed parts is reduced. It is extremely simple and highly reliable.

[Brief explanation of the drawing]

FIG. 1 is a block diagram illustrating the concept of the present invention. FIG. 2 is an electrical circuit diagram of an integrated embodiment of the remote control device 1 to [1-1] of the present invention. FIG. 3 is an explanatory diagram showing the operation of the first embodiment shown in FIG. 2. FIG. 4 shows a specific electric circuit of another second embodiment of the remote control device of the present invention. FIG. 5 is an explanatory diagram for explaining the operation of the remote 1-control 1-roll device according to 1) in the same embodiment. 10... Operation section 20... Input switch section 3
0...Signal voltage converter 40...Signal line 50.
...Receiving section 60...Voltage level determination section 70.
...Power supply section special 8'F applicant if [13 Gosei Co., Ltd. agent Patent attorney Hirodo Okawa Patent attorney Shudo Hijiyuki Patent attorney Akio Maruyama

Claims (3)

[Claims] (1) Consists of an operating section provided on an automobile steering wheel, a receiving section provided on the vehicle body, and a single signal line connecting the operating section and the receiving section, and the operating section is , an input switch unit for remote operation, and a voltage applied to the single signal line from the receiving unit 1) to a unique voltage level that differs depending on the operating state of the switch unit. a signal voltage conversion section, etc., which is a conversion section; 1. A remote control device comprising a 4 ml power supply section that supplies power to a specific load specified by each voltage level in accordance with a judgment signal to be outputted. (2) The signal voltage conversion unit connects constant voltage diodes A-to with different constant voltages between the signal line and the ground in parallel, and operates the input switch unit to operate the constant voltage diodes of the specific parallel circuit. The remote control device according to claim 1, characterized in that the remote control device is moved 1'1 by U. (3) The voltage level determining unit included in the receiving unit includes a binary state voltage holding circuit that performs a binary count of the determination signal from 1 to 1 for each voltage level, and the operating unit is configured to operate the specified load. Claim 1, characterized by a mechanism that applies only a signal in synchronization with start and stop times, and electrically releases a single signal line while the load is in operation. A control device for the remote control 1 described in or described in item 2.