JPS63255142A - Automatic winker cancellation device - Google Patents

Abstract

PURPOSE:To surely stop the operation of a winker by stopping said operation, when the change of the steering wheel turning angle, lapse time after the turning-ON operation of a winker switch, and the traveling distance fulfill the prescribed conditions. CONSTITUTION:When the detection signal of a steering wheel turning angle sensor 1 fulfills the prescribed conditions, the first winker cancellation signal is outputted from a signal processing circuit 2. Further, a winker switch 10 and a car speed detecting circuit 4 are installed, and the traveling distance after the turning-ON operation of the winker switch 10 is measured by a traveling distance measuring circuit 5, and when the lapse time measured from the traveling distance and a timer circuit 6 fulfills the prescribed conditions, the second winker cancellation signal is outputted from an AND circuit 3. When the first or second winker cancellation signal is generated, a flash stopping mechanism 9 is operated through an OR circuit 7 and an output circuit 8, and the winker switch 10 is returned to a neutral position.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to an automatic turn signal canceling device suitable for use in a vehicle equipped with a bar handle, such as a motorcycle.

(Prior art) Conventionally, in vehicles equipped with bar handles such as motorcycles,
2. Description of the Related Art An automatic blinker canceling device is known that automatically stops the operation of a blinker depending on the steering wheel turning angle.

(Problems to be Solved by the Invention) However, in vehicles equipped with eight handles, such as motorcycles, the angle of steering wheel turning when changing direction is often small; In some cases, the vehicle body is tilted to change direction without turning the steering wheel, making it difficult to detect the turning angle of the steering wheel, and the turn signal operation may not stop automatically. desired.

The present invention has been made in response to the above needs,
The purpose of this is to ensure that the turn signal will operate even if the turn angle is small when changing direction, or even if the vehicle is tilted and the vehicle is turned without turning the steering wheel. An object of the present invention is to provide an automatic turn signal canceling device that automatically stops.

(Means for Solving the Problems) In order to achieve the above object, the present invention provides a turn signal switch that operates a turn signal of a vehicle, a vehicle speed detection means that detects the speed of the vehicle, and a turn signal switch that operates a turn signal of a vehicle. and also measure the travel distance after turning on the blinker switch based on a vehicle speed detection signal from the vehicle speed detection means, and both the elapsed time and the travel distance satisfy a predetermined condition. Sometimes the blinker
a first output circuit that outputs a first turn signal cancel signal that stops the operation of the turn signal; a steering wheel turning angle detecting means for detecting the turning angle of the steering wheel of the vehicle; and a steering wheel turning angle detection signal from the steering wheel turning angle detecting means. a second output circuit that detects the change in the steering wheel turning angle detection signal and outputs a second turn signal cancel signal that stops the operation of the turn signal when the change in the steering wheel turning angle detection signal satisfies a predetermined condition; The present invention is characterized in that the operation of the blinker is stopped based on the blinker cancel signal that is output first among the blinker cancel signal or the second blinker cancel signal.

(Function) - According to such an automatic turn signal canceling device,
If the driver changes direction without turning the steering wheel, the turn signal will stop operating when both the elapsed time and distance traveled after the turn signal switch is turned on satisfy predetermined conditions.

Furthermore, when the steering wheel is turned relatively largely to change direction, the turn signal operation is stopped when the change in the steering wheel turning angle satisfies a predetermined condition.

(Embodiment) A preferred embodiment of the present invention will be described below based on the accompanying drawings.

As shown in FIG. 1, a steering wheel turning angle sensor l.

The signal processing circuit 2 outputs a turn signal cancel signal, and the AND circuit 3 outputs a vehicle speed detection circuit 4,
The distance measurement circuit 5 measures the distance traveled after turning on the turn signal switch, and the timer circuit 6 measures the distance traveled after turning on the turn signal switch.
When the elapsed time after the switch is turned on satisfies predetermined conditions, a blinker cancel signal is output. The winker cancel signals of the two routes are input to the OR circuit 7.

Therefore, if either one of the blinker cancel signals is output, the output circuit 8 and blinking stop mechanism 9 return the blinker switch 10 to neutral.

Next, the A-body configuration of the present invention will be explained.

Figure 2 shows the configuration of the turn signal canceling device.
In FIG. 2, electricity is supplied from a power source 1B through a terminal 11 to a control unit 12, blinker lamps 13, 14, position lamps 15, 16, and a potentiometer 17 (handle turning angle sensor) that extracts the steering wheel turning angle. .

Regarding the blinker lamps 13 and 14, 13 is a lamp for the left side, and 14 is a lamp for the right side. Lamp 13.
The blinking operation of 14 is performed by the action of relay 18.

Which lamp 13 or 14 is to be operated is determined by the moving direction of the mover 19a of the blinker switch 19.

The left and right position lamps 15 and 16 provided together with the blinker lamps are always on when the vehicle is running and the corresponding blinker lamps are not flashing, and these lamps alert third parties to the presence of the motorcycle in progress. Let me know. The movable contact 20a of the positive and negative lamp switch 20 is in the neutral position when the lamp is traveling straight, and contacts either terminal 20b or 20c to turn the lamp 15°1.
6 is turned on, but when changing direction, the lamp moves to either the left or right in conjunction with the blinker switch 19, and only the lamp on the side where the vehicle is turned is turned off. According to this circuit configuration, the signal a can be used to distinguish whether the direction of direction change is to the right or to the left from the circuit section of the position lamp.

b can be taken out.

As shown in FIG. 3, the movable element 19a of the blinker switch 19 and the movable contact 20a of the switch 20 are actually constructed so that one movable contact 21 is used in combination. Further, the turn signal switch 19 and the position lamp switch 20 are returned to the neutral position before the direction change, etc. under the condition that the predetermined operation is completed after the direction change, lane change, etc. by the action of the solenoid 22. I am forced to do it.

The control unit 12 receives an electrical signal from a potentiometer 17 (the above-mentioned handle turning angle sensor) capable of detecting the turning angle of the steering wheel, and a pulse signal from a reed switch 23 for measuring the illt speed. , signal a taken out from the position lamp circuit part
, b are input. Then, based on each signal, a circuit provided in the control unit executes signal processing for automatically canceling the blinking of the turn signal lamp that has started operating.

The circuit configuration within the control unit 12 will be specifically explained based on FIG. This circuit corresponds to the detailed block diagram shown in FIG.

The potentiometer 17 is interposed between the main body of the motorcycle and the steering section, and is configured to output a predetermined voltage corresponding to the position of the handlebar in accordance with the movement of the handlebar, for example. The output of the potentiometer 17 is input to a circuit 24 for removing noise.

The noise removing circuit 24 has a function of attenuating the signal coming from the potentiometer 17 in a low speed state and reducing its output. The 4!1 switch is a semiconductor switch element 26 (for example, a pirate switch, etc.) provided on the output side of the transistor 25.
It is formed by controlling the on/off operation of the vehicle speed detection circuit 4 by the output signal of the vehicle speed detection circuit 4, and by combining the functions of a circuit having a time constant consisting of the output signals of the resistor 27 and the capacitor 28.

In other words, the output signal of the vehicle speed detection circuit 4 is generated in the form of a pulse,
Regarding the level state of the output signal, as the vehicle speed increases, the frequency of high level increases, and as the vehicle speed decreases, the frequency of high level decreases. Therefore, the switch element 26, which is turned on when the output signal of the vehicle speed detection circuit 4 is at a high level, will turn on more times as the vehicle speed increases, and will turn on fewer times as the vehicle speed decreases. Depending on the operating characteristics of this switching element 26, the resistance 27. The time constant of the circuit constituted by the capacitor 28 is 1 (apparently increases depending on the speed. In other words, at low speeds, the time constant is large, and as the speed increases, the time constant becomes smaller than the time constant determined by the resistor 27 and capacitor 28. Due to this action, at a predetermined vehicle speed, the state of the signal from the potentiometer 17 input to the circuit 24 is transmitted almost unchanged to the amplifier 29, 30, 31, and at a predetermined low vehicle speed. The input signal from the potentiometer 17 is transmitted to each amplifier 29, 30, 31 in an attenuated state.

Therefore, among the signals output from the potentiometer 17, signals unrelated to the direction change caused by the movement of the steering wheel at a predetermined low vehicle speed or when stopped are converted into output signals of the vehicle speed detection circuit 4 by the noise removal circuit 24). Therefore, among the signals output from the potentiometer 17, only the signal 3- actually related to the direction change is transmitted to each of the amplifiers 29, 30, and 31.

In addition, in the 1st stuttering speed detection circuit 4 ratio, 11 (provided close to the rotating part of the body and turned on and off by a magnet) extracts a signal related to the speed, and turns on the reed switch 23. - Turn on and off the transistor 32 based on the off operation.

The on/off operation of the transistor 32 charges the capacitor 33 or discharges it via the resistor 34, thereby turning the switch element 26 on and off as described above. In the above, the time period during which the switch element 26 is in the on state is determined by the values of the capacitor 33 and the resistor 34.

The circuit section 35 is a peak hold circuit, and is a circuit that holds (peak holds) a value corresponding to the maximum (or minimum) voltage value output from the potentiometer 17 at the time of direction change as the terminal voltage of the capacitor 36. In the peak hold circuit 35, a branch circuit consisting of a semiconductor switch element 37 and a diode 38 and a semiconductor switch element 39 are connected between the upper terminal of the capacitor 36 and the output terminal of the amplifier 29.
A branch path consisting of a diode 40 and a diode 40 is provided. The switching elements 37, 39 are respectively controlled by said signals a, b taken from the circuit part of the position lamp. Therefore, when turning right or left, in response to the operation of the turn signal switch in the direction of the turn, either the switch elements 37 or 39 will be turned off, and if only the switch element 37 is energized, the potentiometer 17 will output. A value corresponding to the maximum voltage is held, and a value corresponding to the minimum voltage is held when only the switch element 39 is in the energized state. The respective voltages correspond to the maximum and minimum values of the I/handle turning angle at the time of direction change.

Based on the action of the peak hold circuit described above, in normal straight traveling condition, the output voltage of the @ road 24 and the peak hold circuit 35 are
The output voltages of the two are inputted to the amplifiers 30 and 31 as equal values. Furthermore, when changing the direction to the left or right, the maximum (or minimum) voltage signal held in the capacitor 36 among the voltage signals given from the circuit 24 to the peak hold circuit 35 in accordance with the direction of change due to the operation of the blinker switch. ) is input to each input terminal of the intensifiers 30 and 31.

In the comparison circuit 41, the output of the noise removal circuit 24 corresponding to the output of the potentiometer 17 and the peak hold circuit 3 are connected to two inputs of the differential amplifier 30°3I.
5 output is input, and the maximum (or minimum) at the time of direction change
The voltage output from the noise removal circuit 24 and the voltage that changes every moment during the direction change are compared. The amplifier 30 outputs the difference between the voltage output from the noise removal circuit 24 and the maximum peak voltage, and the amplifier 31 outputs the difference between the voltage output from the noise removal circuit 24 and the minimum peak voltage. The output corresponds to the return angle of the steering wheel after turning the steering wheel in the case of a right turn or a left turn. When the output voltage of any of the amplifiers 30, 31 becomes greater than the voltage preset by the resistors 42 and 43, the output of the amplifier 44 becomes a high level signal 7g, which signal is used to cancel the turn signal device. It becomes a signal.

The output signal of the amplifier 44 is waveform-processed into a one-shot pulse by a differentiating circuit comprising a capacitor 45 and a resistor 46, and is then amplified by transistors 47 and 48 before being applied to the solenoid 22. The above circuit is the first
Corresponds to the output circuit shown in the figure. When the solenoid 22 is momentarily energized, the blinker switch and the position lamp switch are returned to the neutral position before the direction change, as in m+.

The above is the circuit portion that outputs the cancellation signal using detection of the steering wheel turning angle.

Next, a predetermined set time is measured when changing direction.
The circuit section 49 of the timer circuit 6 that outputs a predetermined signal to the AND circuit 3 after the signal goes low will be explained.

When the turn signal switch 21 is operated to the left or right to change the direction, the output of the AND circuit 50 becomes low level, turning off the transistor 51 and starting charging the capacitor 52. When the capacitor 52 is charged for a certain period of time and its terminal type 7-E becomes higher than the voltage set by the resistor 53.54, the amplifier 55 outputs a high level output to the AND circuit 3.

As long as the vehicle continues to drive straight without flashing any of the blinker lamps, the output of the AND circuit 50 remains at a high level, so the transistor 51 will not turn off, and therefore the timer circuit 49 will operate. Never.

The time set by the timer circuit section 49 is determined by the values of the resistor 56 and capacitor 52, but this time can be changed arbitrarily.

Next, the circuit section 57 of the distance measuring circuit 5 that measures the distance traveled
Explain.

The distance measuring circuit section 57 includes a counter 58 and transistors 59 and 60 connected in two stages.

The output of the reed switch 23 is connected to the human power of the counter 58. When the counter 58 is set, i, Tj, the reed switch 23 outputs a rectangular pulse train, so the counter 58 counts these pulses to reach the set count number (meaning the set distance). When the transistor 59 and 60 are turned on, AND circuit 3
A predetermined signal is output.

・L (As long as both cars are traveling straight without blinking either turn signal lamp, the output of the AND circuit 50 will cause the
The distance meter 311 is reset to the counter 58.
The circuit section 57 does not operate. In addition, the above counter 5
8, the distance is calculated by JR and the total is 71111.

In this manner, after the turn signal switch 19 is turned on, the timer circuit section 49 outputs a predetermined signal to the AND circuit 3 when a preset time has elapsed, and the turn signal switch 19 is turned on. When the rear vehicle travels a preset distance, the distance measuring circuit section 57 outputs a predetermined signal to the AND circuit 3.

Therefore, after operating the blinker switch 19,
If both the elapsed time and the distance traveled satisfy the predetermined conditions, A
The output of the ND circuit 3 becomes a high level, and thereby the output of the amplifier 44 becomes a high level signal 1'f state, and this signal becomes a signal for canceling the blinker device.

The output signal of the amplifier 44 is waveform-processed into a one-shot pulse by a differentiating circuit comprising a capacitor 45 and a resistor 46, and is then amplified by transistors 47 and 48 before being sent to the solenoid 22. When the solenoid 22 is momentarily energized, the blinker switch and the position lamp switch are returned to the neutral position before the direction change.

The above is the circuit portion that outputs the cancel signal using detection of elapsed time and travel distance.

Next, the operation of the automatic blinker canceling device will be explained.

When a vehicle changes direction at low speed, the vehicle has a driving characteristic in which the steering wheel is turned relatively widely, so a blinker cancel signal is output by detecting the steering wheel turning angle. Furthermore, even if the steering wheel moves unrelated to the direction change when the vehicle is in a predetermined low-speed state or in a stopped state, the output signal related to this steering wheel movement is attenuated by the noise removal circuit 24. , the blinker operation does not stop without the blinker cancel signal being output.

When a vehicle changes direction at high speed, the steering wheel hardly turns, so turn signals are used.
The timer circuit section 52 measures the elapsed time after the activation of 1l in total.
At the same time, the distance traveled is measured by a distance measuring circuit 57, and an AND circuit 3 is used to output a turn signal cancel signal when both the recorded elapsed time and the traveled distance satisfy a predetermined condition. It turns out.

(Effects of the Invention) As explained above, according to the present invention, when the direction is changed without turning the steering wheel, both the elapsed time after turning on the blinker switch and the distance traveled are The turn signal will stop operating when a predetermined condition is met, and if the steering wheel is turned relatively sharply to change direction, the turn signal will stop operating when the change in steering angle satisfies the predetermined condition. stops.

Therefore, in various types of direction changes such as left and right turns, turns, and lane changes, the turn signal operation can always be stopped at an appropriate timing, and this is effective in improving the drivability of vehicles such as motorcycles.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention, and FIG. 1 is a block diagram showing the configuration of an automatic blinker canceling device, FIG. 2 is a block diagram showing the relationship between the automatic blinker canceling device and the blinker device, and FIG. 3 is a block diagram showing the structure of the automatic blinker canceling device. 1 is a JL type circuit diagram of an automatic turn signal canceling device. In the drawing, l is a steering wheel turning angle sensor, 2 is a signal processing circuit, 3 is an AND circuit, 4 is a vehicle speed detection circuit, 5.57 is a mileage measuring circuit, 6.49 is a timer circuit, and 7 is an OR circuit.
9 is a blinking stop mechanism, 10.19 is a blinker switch, and 13.14 is a blinker lamp. Figure 2

Claims (1)

[Claims] A turn signal switch that operates a turn signal of a vehicle;
A vehicle speed detecting means for detecting the speed of the vehicle, and measuring the time after turning on the turn signal switch, and measuring a traveling distance after turning on the turn signal switch based on a vehicle speed detection signal from the vehicle speed detecting means. , a first output circuit that outputs a first turn signal cancel signal that stops the operation of the turn signal when both the elapsed time and the travel distance satisfy a predetermined condition; and a steering wheel that detects the turning angle of the steering wheel of the vehicle. a steering wheel steering angle detecting means; and a steering wheel steering wheel that detects a change in a steering wheel turning angle detection signal from the steering wheel steering angle detecting means, and stops the operation of the turn signal when the change in the steering wheel turning angle detection signal satisfies a predetermined condition. and a second output circuit that outputs two turn signal cancel signals, and stops the operation of the turn signal based on the turn signal cancel signal that is output first among the first turn signal cancel signal or the second turn signal cancel signal. Features an automatic turn signal canceling device.