JPH0740423Y2 - Safe driving device for vehicles - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a vehicle safety driving device, and more particularly to a vehicle safety driving device capable of driving a warning means at the maximum vehicle speed.

(Prior Art) Various types of safe driving devices for vehicles are used in order to ensure the safety when the vehicle is traveling, especially when traveling at high speed.

For example, when the vehicle speed exceeds the set maximum vehicle speed, a warning lamp or warning buzzer that is a warning means is driven to notify the driver that the vehicle speed is over, or the set maximum vehicle speed is exceeded. It cuts fuel to the internal combustion engine and regulates excessive increases in vehicle speed.

(Problems to be solved by the invention) However, when the vehicle is traveling, the driving conditions differ depending on the road condition, the traveling purpose, the peculiarity of the load, and the like. For this reason, it is rather a problem to drive under a condition that is uniformly set in advance, which increases fatigue of the driver both physically and mentally.

An object of the present invention is to provide a vehicle safe driving device that allows a driver to have selectivity.

(Means for Solving the Problems) In order to achieve the above-mentioned object, the present invention, when issuing a command for restricting the maximum vehicle speed to a specified value, turns off the first contact and turns off the second contact. A vehicle speed limit switch that is turned on more, a vehicle speed detection switch that outputs an ON output when the vehicle speed exceeds a set value, a buzzer relay that receives an exciting current when the first contact of the vehicle speed limit switch is on, and a contact point of the buzzer relay And a warning sound generating means that is driven when both of the vehicle speed detection switches are turned on, a normally closed maximum speed detection switch that is switched off when the maximum speed of the vehicle transmission is detected, and the amount of fuel supply to the internal combustion engine can be regulated. Fuel control actuators and the above-mentioned fuel control actuators are switched to the non-restricted position when the excitation current is turned on A solenoid valve for switching the user to the regulated position and an actuator drive circuit formed by connecting the solenoid valve to a power source via the highest stage detection switch and connecting the first contact in parallel to the highest stage detection switch. It is characterized by having.

(Function) The buzzer relay is connected to the power source via the first contact of the vehicle speed limit switch, the warning sound generating means is connected to the power source via the buzzer relay and the vehicle speed detection switch, and the highest stage detection switch and the vehicle speed are connected in parallel with each other. Since the solenoid valve is connected to the power source via the first contact of the limit switch, the warning sound generating means can be driven by turning on the vehicle speed detection switch when the first contact of the vehicle speed limit switch is turned on.
When the contact is off, keep the warning sound generating means in the non-driven state,
Alternatively, the fuel supply amount can be regulated by switching the fuel regulation actuator to the regulation position when the normally closed highest stage detection switch is turned off.

(Embodiment) FIG. 1 shows a circuit diagram of a vehicle safety driving device as one embodiment of the present invention.

Here, the power source 1 is connected to a speed warning switch 4 as a vehicle speed detection switch and a vehicle speed limit switch 5 via a second fuse 3, respectively.

As the speed warning switch 4, a switch built in the levo tachograph 6 is used. This Levo tachograph 6 is a well-known instrument that continuously and automatically records the operation status of a car.
The internal circuit includes three warning switches and one speed warning switch 4.

Here, the three speed warning switches are a first warning switch SW1 that is turned on when the vehicle speed reaches the first set speed V1, and a second switch that is turned on when the vehicle speed reaches the second set speed V2 (V1 <V2).
The switch SW2 for warning and the vehicle speed are the third set speed V3 (V2 <V
It is composed of a third warning switch SW3 which is turned on when it reaches 3), and a speed warning switch 4 interlocking with this is attached to the third warning switch SW3. These first,
First, second and third speed indicator lights (not shown) are connected to the second and third warning switches. A warning buzzer 22 is connected to the external connection terminal 7 of the speed warning switch 4 via a warning lamp 8 and a buzzer relay 9, respectively.

As shown in FIG. 2, the warning lamp 8 can be lit and displayed on the display surface on the dash panel of the driver's seat, and is mounted in the vicinity of the other lit display portion 25.

The buzzer relay 9 supplies the exciting current for turning on the normally closed contact 10 via the buzzer switch 11 to the vehicle speed limit switch 5
It is configured to be supplied from the first contact 12 side.

The vehicle speed limiting switch 5 is a changeover switch, and when its contact piece 13 is held in the first position by the changeover knob 24 (the position shown by the solid line in FIG. 1), the first contact 12 turns on (the second position). When the contact 14 is switched to off) and then switched to the opposite second position, the second contact 14 is switched on (the first contact 12 is switched off)
To be done. The second contact 14 is connected to the ON indicator light 15.

Further, the solenoid valve 17 is configured to be connectable to the power supply 1 via the highest stage detection switch 18 and the first contact 12 of the vehicle speed limiting switch 5 which are connected in parallel to each other, and the same portion constitutes an actuator drive circuit. Reference numeral 16 represents a rectifying diode.

Here, the solenoid valve 17 is an on-off valve that opens and closes the high-pressure air pipe of the fuel regulation actuator 19, and is configured to supply high-pressure air to the fuel regulation actuator 19 when turned off and stop supply of high-pressure air when turned on. Has been done. The fuel control actuator 19 is an air cylinder, and its piston 19
1 is a fuel injection pump that controls the amount of fuel supplied to the internal combustion engine 2
It is connected to a rack (not shown) 0 via a lever 21. This fuel regulating actuator 19 holds the lever 21 side in the non-regulating position while receiving high pressure air from an air tank (not shown), drives the internal combustion engine in a steady state, and while not receiving it, places the lever 21 side in the regulating position. Then, the output of the internal combustion engine is brought to a predetermined state, that is, the lever 21 is switched to the non-restricted position when the solenoid valve 17 is turned on, and the lever 21 is switched to the restricted position when the solenoid valve 17 is turned off.

The highest stage detection switch 18 is a normally closed switch, is installed inside a mission in a power transmission system of a vehicle (not shown), and is configured to be turned off when the highest stage is selected.

The buzzer switch 11 is a switch that normally closes the first contact 12 and the buzzer relay 9, and is turned off by a driver at a desired time, and the warning buzzer 22 as a warning on generation means can be selectively held in a non-driving state. Reference numeral 23 is a buzzer switch lamp that lights up when the buzzer switch is turned on. The buzzer switch 11 and the buzzer switch lamp 23 may be omitted in some cases.

Such a safe driving device for a vehicle can select two safe driving modes as follows when the vehicle is running.

First, in the first safe driving mode, the vehicle speed limit switch 5
Is off, that is, in the switching state in which the first contact 12 is on, the buzzer relay 9 is held on. In this case, only the buzzer switch light 23 is lit.

Here, when the vehicle speed is 95 [km / H] or less, the speed warning switch 4 is turned off, and the warning lamp 8 and the warning buzzer 22 are kept in the non-driving state.

When the vehicle speed exceeds 95 [km / H], the speed warning switch 4 is turned on, and the warning lamp 8 and the warning buzzer 22 are turned on.

At this time, even if the highest stage detection switch 18 is turned off, the drive current is flowing from the first contact 12 side to the solenoid valve 17, and the fuel regulating actuator 19 is held in the non-regulating position. .

Next, in the second safe driving mode, the vehicle speed limit switch 5
When the state where the first contact 12 is turned off and the second contact is turned on is entered, the ON indicator lamp 15 is turned on and the buzzer relay 9 is turned off.

Here, when the vehicle speed is 95 [km / H] or less, the speed warning switch 4 is turned off, and the warning lamp 8 and the warning buzzer 22 are kept in the non-driving state.

Next, the mission (not shown) is switched to the highest stage,
Moreover, when the vehicle speed exceeds 95 [km / H], the speed warning switch 4 is turned on, the warning lamp 8 enters the driving state, and the warning buzzer 22 is held in the non-driving state.

At this time, the highest stage detection switch 18 is turned off,
Moreover, since the first contact 12 is also off, the drive current does not flow through the solenoid valve 17, the fuel regulating actuator 19 holds the lever 21 side of the fuel injection pump 20 in the regulating position, and outputs the internal combustion engine in a predetermined state. The vehicle speed is reduced to a predetermined value.

In the above process, if it is desired to keep the warning buzzer 22 in the non-driving state, the buzzer switch 11 may be turned off.

The vehicle speed limit switch 5 described above is turned on when the vehicle speed exceeds 95 [km / H], but this maximum vehicle speed value can be arbitrarily set to another value.

As described above, according to the present invention, when the first contact of the vehicle speed limiting switch is on, the warning sound generating means can be driven by turning on the vehicle speed detection switch, and when the first contact of the vehicle speed limiting switch is on, the warning sound is generated. The generator is kept in a non-driving state, and instead, when the normally closed highest stage detection switch is turned off, the fuel regulation actuator is switched to the regulation position to regulate the fuel supply amount. Different safe operation modes can be selected by switching the switch, and safe operation can be performed under more accurate conditions.

[Brief description of drawings]

FIG. 1 is an electric circuit diagram of a vehicle safety driving device according to an embodiment of the present invention, and FIG. 2 is a front view of a display surface of a warning lamp. 4 ... Switch for speed warning, 5 ... Switch for limiting vehicle speed,
9 …… Buzzer relay, 10 contacts, 12 …… First contact, 14 ……
2nd contact, 17 ... solenoid valve, 18 ... highest stage detection switch,
19 …… Fuel control actuator, 20 …… Fuel injection pump, 22 …… Warning buzzer.

Claims (1)

[Scope of utility model registration request] 1. A vehicle speed limit switch for switching a first contact from on to off and a second contact to off from on when issuing a command for restricting a maximum vehicle speed to a prescribed value, and a vehicle speed exceeds a set value. And a buzzer relay that receives an exciting current when the first contact of the vehicle speed limit switch is on, and a warning sound generating means that is driven when both the contact of the buzzer relay and the vehicle speed detection switch are turned on. A normally closed highest stage detection switch that is switched off when the highest stage of the vehicle transmission is detected, and a fuel regulation actuator capable of regulating the fuel supply amount to the internal combustion engine,
A solenoid valve for switching the fuel regulation actuator to the non-regulation position when the excitation current is turned on and for switching the actuator to the regulation position when the excitation current is not received, and the solenoid valve via the highest stage detection switch. A safe driving device for a vehicle, comprising: an actuator drive circuit that is connected to a power source and that has the first contact connected in parallel to the highest stage detection switch.