JP2530437B2 - Vehicle control device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention is applied to a vehicle having a travel inhibiting means for inhibiting engine start or stopping engine operation under predetermined conditions. Control device.

(Background of the Invention) Some motorcycles, work vehicles, and the like are provided with various mechanisms for improving traveling safety. For example, there is one in which the main transmission is neutral or the clutch for traveling is disengaged so that the vehicle does not start suddenly, and the starter motor can be activated only when the driver is seated correctly. Also PT
If you have a governor in a work vehicle with O, in PTO mode there are also things that can start the engine only when the governor is off. In this case, the governor is in a state where the engine is rotated at a high speed while the engine is stopped. Therefore, if the engine can be started while the governor is on, the engine rotation speed rapidly increases after the engine is started. Therefore, the start of the engine is restricted when the governor is turned on.

Conventionally, there has been a vehicle provided with a travel prohibiting means for prohibiting the start of the engine or stopping the operation of the engine under such a constant condition.

In this type of vehicle, traveling is always prohibited when this certain condition is satisfied, so that inconvenience may occur in that traveling is disabled if a part of the sensor fails. In particular, if the vehicle becomes unable to travel for such a reason during traveling, there is a problem that the driver cannot return.

Therefore, in such an emergency, it is conceivable to provide a canceling means for canceling the operation of the travel prohibiting means to enable traveling. However, when this releasing means is provided, it becomes possible to continue traveling while operating this releasing means,
There is a problem that the significance of providing the travel prohibition means is lost.

(Object of the Invention) The present invention has been made in view of such circumstances,
When traveling is enabled by releasing the operation of the travel prohibiting means that operates when a predetermined condition is satisfied,
It is an object of the present invention to provide a vehicle manufacturing apparatus which prevents the release means from continuing to run while operating and encourages the proper use of the travel inhibiting means.

(Structure of the Invention) According to the present invention, an object of the present invention is to provide an operation of the release mechanism in a vehicle including a travel inhibiting means for inhibiting traveling under a predetermined condition and a release function for releasing the operation of the travel inhibiting means. A vehicle manufacturing apparatus, comprising: a performance lowering means for lowering a traveling performance of a vehicle in a state.

(Embodiment) FIG. 1 is a circuit diagram of an embodiment of the present invention, FIGS. 2, 3, and 4 are logic circuit diagrams showing different control modes, and FIG. 5 is an irregular terrain vehicle to which this device is applied. FIG.

In FIG. 5, reference numeral 10 is a vehicle body frame, 12 is a pair of left and right steering front wheels, and 14 is a pair of left and right driving rear wheels. These front wheels 12 and rear wheels 14 are wide ultra-low pressure tires (so-called balloon tires). It is installed. Reference numeral 16 is an engine mounted near the center of the vehicle body, 18 is a front fender, 20 is a rear fender, 22 is a steering handlebar, and 24 is a straddle-type driving seat disposed on the upper portion of the vehicle body.

In FIG. 1, 26 is a CDI rotation, 28 is a magneto, and 30 is a spark plug. The capacitor 26a of the CDI circuit 26 is charged to the polarity shown by the charging coil 28a of the magneto 28. The pulsar signal a output from the pulsar coil 28b of the magneto 28 is guided to the gate of the thyristor 26b of the CDI circuit 26 via the pulsar circuit 32. When the thyristor 26b is fired by the pulser signal a, the capacitor 26a is discharged through the ignition coil 34,
A spark is generated in the spark plug 30.

36 is a rectifying / voltage adjusting circuit, which rectifies the output of the magneto coil 28c of the magneto 28 to a constant voltage and charges the battery 38.

A starter motor 40 is connected to the battery 38 via a starter relay 42. The starter relay 42 is controlled to be turned on and off via a main switch 44, a starter switch 46 and a starter limiting switch 48. The starter limiting switch 48 is closed when the control circuit 50 determines that a certain condition is satisfied, and the closing of the main switch 44 and the starter switch 46 starts the starter motor 40 and the engine 16.

52 is a neutral lamp, 54 is a reverse lamp, 56 is a PTO
It is a lamp. One end of each of the lamps 52, 54, 56 is connected to the battery 38 via the main switch 44, and the other end of each of the lamps 52, 54, 56 is in the neutral switch.
58, grounded via reverse switch 60 and PTO switch 62. Each of these switches 58, 60, 62 is for the engine 16
It is attached to each part of (see FIG. 5). The neutral switch 58 closes from the rotational position of the transmission drum 64 of the main transmission when the main transmission is in the neutral position. Reverse switch
60 is closed from the rotational position of the forward / reverse switching drum 66 when the vehicle is moving backward. Further, the PTO switch 62 is closed when the belt type clutch 70 for driving the PTO shaft 68 is engaged. A signal indicating the opening / closing of each of the switches 58, 60, 62 is input to the control circuit 50.

The control circuit 50 also receives various signals indicating the operating state. For example, in the case where a differential lock 74 is provided in the differential gear 74 that transmits the output of the engine 16 to the rear wheel shaft 72, it is indicated that the differential lock 74 is locked by this differential lock.
Detect with. When a hitch 78 for pulling a trailer or the like is provided at the rear part of the vehicle body, the hitch switch 80 detects that the trailer is connected to the hitch 78. When the engine 16 is provided with a high / low speed switching mechanism separately from the main transmission, the high speed position is detected by the high speed position detection switch 82. When equipped with the PTO shaft 68, the engine is driven when the PTO shaft is driven.
A governor switch 84 detects that the governor is in an off (non-operating) state in a governor having a governor for keeping 16 at a constant speed. The seat switch 86 detects that the driver is seated on the driving seat 24. When the engine 16 is equipped with a manual traveling clutch, the clutch switch 88 detects the discontinuity of this clutch. The signals of these switches 76 to 88 are input to the control circuit 50. The vehicle speed V detected by the vehicle speed detector 90 is input to the control circuit 50. The pulsar signal a is also input to the control circuit 50 as a signal indicating the engine 16 and the rotation speed N. The kill switch 92 provided on the steering handlebar 22 is connected to the output end of the pulsar coil 28b. The pulsar signal a is grounded by closing the kill switch 92 to prevent the thyristor 26b from firing and the spark plug 30 to be misfired.

Based on these various input signals, the control circuit 50 causes the pulsar circuit 32 to ignite the spark plug 30, delays the ignition timing, or closes the buzzer switch 94 to activate the warning buzzer 96 based on these various input signals. .

The traveling prohibition means prohibits traveling under a predetermined condition, and the operation of the traveling prohibition means can be prohibited by the release mechanism 98. For example, the control circuit 50 is provided with a signal line 100 forming a closed loop, and by cutting the signal line 100, the operation of the travel prohibiting means can be prohibited.

This device operates according to the mode of operation shown in FIGS. The embodiment shown in FIG. 2 has a travel inhibiting means for inhibiting the starter motor 40 from starting under a predetermined condition, and the release inhibiting means deactivates the travel inhibiting means to send a starter signal b to the starter limiting switch 48. While allowing 40 to be started, a retard signal c is sent to the pulser circuit 32 to delay the ignition timing and limit the engine output. In this figure, 200 and 204 are OR circuits, and 202 is an AND circuit, to which signals of respective switches and the like are inputted as shown in the figure. First, since the main transmission is neutral (the neutral switch 58 is on) or the traveling clutch is disengaged (the clutch switch 88 is disengaged), it is determined that the vehicle is not traveling even if the engine is started (OR circuit 200). Or if the kill switch 92 is on the running side, the PTO clutch 70 (Fig. 5) is disengaged, and the PTO governor is disengaged (AND circuit 202).
Normally, the engine can be started. This means that if the conditions are met, the vehicle will not start suddenly even if the engine starts, and PT
This is because the O shaft 68 does not suddenly rotate and the governor does not cause the engine speed to rapidly increase. In this case, the control circuit 50 sends the starter signal b to the starter limiting switch 48 so that the starter motor 40 can be started.

However, if any of these switches is abnormal, the starter signal b will not be output. In this case, by disconnecting the signal line 100, the operation of this travel restriction mechanism is prohibited (the release mechanism 98 is operated), and the starter signal b is sent to the switch 48 to enable the operation of the starter motor 40. At this time, the retard signal c is simultaneously sent to the pulsar circuit 32, the engine output is limited, and the running performance of the vehicle is deteriorated. In this case, the performance reducing means is configured to reduce the engine output by the retard signal c.

In the circuit shown in FIG. 3, the traveling prohibition means sends a signal (misfire signal) d for causing misfire of the spark plug 30 to the pulsar circuit 32 to stop the engine under a predetermined condition. Further, during the operation of the releasing means, the performance lowering means sends the retard signal c to limit the engine output and sends the speed limit signal e to limit the engine speed to a certain level or less. That is, each of the signals c, d, and e based on conditions such as the PTO clutch 70 being disengaged, the governor being disengaged, the seat of the operating seat 24 being seated, the state of the high / low speed switching mechanism, and the engine speed being above the set speed. Is output.

In the circuit shown in FIG. 4, the traveling prohibition means sends a misfire signal d to stop the engine under a predetermined condition. Further, when the releasing means is operated, the performance reducing means sends the retard signal c to limit the engine output, while the warning means sends the buzzer signal f to the buzzer switch 94 and sounds the buzzer 96. That is, the vehicle speed V detected by the vehicle speed detector 90 is equal to the set vehicle speed.
Whether it is greater than V _0, whether the main transmission is neutral,
Each signal c under predetermined conditions such as whether the engine speed N is equal to or higher than the set speed N _0, whether the trailer or the like is being towed,
Output d and f.

Of course, the present invention can be applied to a vehicle having various traveling prohibition means and release means that operate under a predetermined condition, and is not limited to the above-mentioned embodiment. Further, the releasing means is not limited to the structure of cutting the signal line 100 as in the embodiment, but a manual switch may be provided somewhere on the vehicle body and the releasing means may be operated by this switch. Further, the warning means is not limited to the one that sounds the buzzer, and may be one that lights a warning lamp. Further, the present invention may include both the performance lowering means and the warning means.

(Effects of the Invention) As described above, the present invention has the travel prohibiting means for stopping the operation of the engine whose engine start is restricted under the predetermined condition and the canceling means for canceling the operation of the travel prohibiting means. In this case, since the performance lowering means is operated when the releasing means is operated, the driver can always recognize the fact from the traveling performance when the releasing means is operated. Therefore, it is possible to prevent the traveling from being continued with the releasing means being activated, and to encourage the proper use of the traveling inhibiting means.

[Brief description of drawings]

FIG. 1 is a circuit diagram of an embodiment of the present invention, FIGS. 2, 3, and 4 are logic circuit diagrams showing different control modes, and FIG. 5 is a side view of an uneven terrain vehicle. is there. 16 …… Engine, 50 …… Control circuit, 98 …… Release means.

Claims (1)

(57) [Claims] 1. A vehicle having a traveling prohibiting means for prohibiting traveling under a predetermined condition and a releasing function for releasing the operation of the traveling prohibiting means, in which the traveling performance of the vehicle is lowered in the operating state of the releasing mechanism. A vehicle control device comprising a performance lowering means.