JPH0745838Y2 - Safe driving equipment for automobiles - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a safe driving device for an automobile, and more particularly to a device for preventing overspeeding of a vehicle.

(Prior Art) As is well known, it is ideal for an automobile to travel at a legal speed, but there are cases where this speed is exceeded. For example, when traveling on an uphill road, if the uphill traveling is finished while maintaining the accelerator opening degree at the time of uphill traveling, the traveling speed tends to exceed due to the accelerator opening degree.

(Problems to be solved by the invention) Therefore, when such a phenomenon occurs, the fuel supply device side is configured so that the fuel supply is stopped to a minimum and only the amount of fuel that allows the ridriding rotation is supplied. It is controlled by.

However, when such fuel control is performed, the driver may be given the impression that the driver does not obtain an output commensurate with the amount of depression while depressing the accelerator pedal. There is a fear that the driver may be anxious that the output may be decreasing.

Therefore, an object of the present invention is to eliminate the anxiety of driving by making it possible to easily know why the supply of fuel is suppressed to a minimum in view of the above-mentioned problems relating to the operating device for performing fuel control. (EN) Provided is a safe driving device for an automobile.

(Means for Solving the Problem) In order to achieve this object, the present invention provides a fuel regulation actuator capable of regulating the fuel supply amount to an internal combustion engine, and a fuel regulation actuator having a non-regulation position and a regulation position. Solenoid valve to switch to, the highest gear detection switch that sets the electric path to the solenoid valve to the conduction state when it is detected that the highest gear of the vehicle transmission is selected, and the highest gear by manual operation by the driver. A changeover switch that can change the electric path to the detection switch between a conductive state and a non-conductive state, and an operation that is interlocked with the changeover switch and that is in a non-conductive state when the changeover switch is in a conductive state and is in a conductive state when it is in a non-conductive state. A vehicle speed limiting device having a switch, and an operation switch in the vehicle speed limiting device are connected in series, and the changeover switch is the highest stage detection switch. Buzzer that forms a series circuit when the electrical path to the switch is set to a non-conductive state, and a speed detection switch that connects the electrical path to the buzzer and connects the electrical path to the buzzer when the maximum speed is reached. And a warning circuit having a switch, and when the electric path between the changeover switch and the highest stage detection switch is set to a conduction state, the highest stage switch is turned on / off.
When it is turned off, the solenoid valve is activated to regulate fuel,
When the electric path between the changeover switch and the highest stage detection switch is set to the non-conduction state, the switches, the vehicle speed limiting device, and the warning circuit are operated so as to operate the buzzer by turning on / off the speed detection switch. It is characterized by being connected.

(Operation) In the present invention, it is possible to appropriately select whether or not to perform fuel regulation, depending on the intention of the driver. In addition, if the driver chooses not to impose fuel restrictions, a buzzer can warn of excessive speed instead of fuel restrictions. As a result, it is possible to prevent the fuel regulation not intended by the driver.

(Embodiment) Hereinafter, the details of the present invention will be described with reference to an embodiment shown in the drawings.

FIG. 1 is a circuit diagram showing the structure of a safe driving device for an automobile according to the present invention.

The present embodiment is intended for a diesel engine used for a truck or the like, and this diesel engine is an operation amount of a control lever 1A integrated with a control rack (not shown) provided in the fuel injection pump 1. The fuel supply amount is controlled according to the above. Therefore, the control lever 1A is connected to the air actuator 2 that can regulate the fuel supply amount. The air actuator 2 is a vehicle speed limiting device 3 described later.
The electromagnetic valve 4 is driven and controlled by the solenoid valve 4 to selectively control the non-regulating position and the regulating position.

As is apparent from the figure, the vehicle speed limiting device 3 and the solenoid valve 4 are connected in series, and the electric path connecting these respective members is the highest for switching the electric path to the conductive / non-conductive state. The stage detection switch 5 is arranged. This highest gear detection switch 5 is used as a gear position in the transmission.
The electric circuit is electrically connected when the gear position is set to the highest gear, which is the highest gear speed. The state of the highest gear detection switch 5 shown in the figure is a state in which the highest gear is not selected.

The vehicle speed limiting device 3 is provided with a changeover switch 3A for changing over the conduction / non-conduction state of the electric path of the highest stage detection switch 5, and an operation switch 3b which can be linked to the changeover switch 3A.

In the changeover switch 3A, the electric path to the highest stage detection switch 5 is set to the non-conduction state when the highest stage is not selected. Then, the switching of the state in which the electric path to the highest stage detection switch 5 is made conductive is performed by a manual operation by the driver.

Further, the operation switch 3B is connected in series with a buzzer 6B provided in a warning circuit 6 described later as an initial state, and when the changeover switch 3A is in a non-conduction state with respect to the highest stage detection switch 5. It is designed to connect the electric path to the buzzer 6B. Also, a warning lamp 6C is connected in parallel to the buzzer 6B, and the electric path is made conductive in the initial state of the changeover switch 3B.

As a result, the vehicle speed limiting device 3 is capable of limiting the vehicle speed as its name suggests. Therefore, when the changeover switch 3A is switched to a state in which the electric path to the highest stage detection switch 5 is conducted. , Highest stage detection switch 5
When the electric path of the solenoid valve 4 is set to the conductive state, the fuel supply by the fuel injection pump 1 can be restricted. Therefore, if the fuel supply amount from the fuel injection pump 1 is regulated, the speed excess is suppressed.

The warning circuit 6 includes a speed detection sensor 6A, a buzzer 6B, and a warning lamp 6C, respectively.

The vehicle speed detection sensor 6A is composed of a switch operated by an actuator that moves according to the speed, and when the switch reaches the predetermined maximum speed, the switch is operated by the actuator to connect the electric path to the buzzer 6B and the warning lamp 6C. It is designed to conduct electricity. The speed detection sensor 6A is adapted to be used by being installed in a speedometer such as a tachograph.

The buzzer 6B and the warning lamp 6C are connected in series with the operation switch 3B in the vehicle speed limiting device 3, and a part of its electric path is connected to the speed detection sensor 6A. When the changeover switch 3A in the vehicle speed limiting device 3 is not in a state of conducting the electric path to the highest stage detection switch 5, the buzzer 6B and the warning lamp 6C prevent the vehicle speed detection switch 6A from changing the electric path to the buzzer 6B and the warning lamp 6C. When switched to the conductive state, a warning sound can be generated and a lamp can be turned on.

Since the present embodiment is configured as described above, the following operation modes are set.

First, when the changeover switch 3A in the vehicle speed limiting device 3 is set to the non-conduction state of the electric path to the highest stage detection switch 5, regardless of the conduction / non-conduction state of the highest stage detection switch 5, Since the electric path to the solenoid valve 4 is set to the non-conductive state, the fuel injection pump 1 is maintained in the inoperative state.

Further, when the changeover switch 3A is in the above-mentioned state, the operation switch 3B interlocking with this switch 3A operates in the warning circuit 6
The electric path to the buzzer 6B is maintained in a conductive state. As a result, when the speed detection sensor 6A is switched to a state in which the electric path to the buzzer 6B and the warning lamp 6C is made conductive at the time when the predetermined maximum speed is detected, the buzzer 6B and the warning lamp 6C are set to the operating state to warn. A sound is generated and the warning lamp 6C is turned on. Therefore, the driver can determine that the speed has reached the predetermined maximum speed.

Secondly, when the changeover switch 3A in the vehicle speed limiting device 3 is changed from the state shown in the figure to the state in which the electric path to the highest stage detection switch 5 is made conductive, the operation switch 3B becomes
The electric circuit to the buzzer 6B and the warning lamp 6C in the warning circuit 6 is switched to the non-conducting state.

On the other hand, in this state, the speed detection sensor 6A in the warning circuit 6
Is switched to a state where the electric path to the buzzer 6B and the warning lamp 6C is made conductive, although the electric path to the buzzer 6B is switched to the non-conductive state by the operation switch 3B,
Since the electric circuit to the warning lamp 6C is in the conductive state, it is possible to warn the driver that the predetermined maximum speed has been reached by turning on the warning lamp 6C.

Further, when the changeover switch 3A is switched to the state in which the electric path to the highest stage detection switch 5 is made conductive, the solenoid valve 4 is not energized when the highest stage detection switch 5 is set to the conductive state to the solenoid valve 4. The fuel injection pump 1 limits the fuel supply. Therefore, by limiting the fuel supply, speed excess is suppressed.

According to the present embodiment, even if the driver does not switch the changeover switch 3A of the vehicle speed limiting device 3, when the predetermined maximum speed is reached, a warning is given by the operating state of the speed detection sensor 6A to open the accelerator. If the changeover switch 3A is switched, the maximum speed is automatically set by the operating state of the maximum speed detection switch 5 only when the maximum speed is set to a speed speed that is easy to reach. It is possible to suppress overspeeding.

(Effects of the Invention) As described above, according to the present invention, whether or not to perform fuel regulation can be appropriately selected according to the intention of the driver. Therefore, the fuel regulation is not intended by the driver. It is possible to prevent the driver from feeling uneasy as to whether or not the output is being reduced, and moreover, when the driver intends, it is possible to accurately carry out fuel regulation.

[Brief description of drawings]

FIG. 1 is a circuit diagram for explaining an embodiment of a vehicle safety driving device according to the present invention. 1 ... Fuel injection pump as fuel supply device, 2 ... Air actuator, 3 ... Vehicle speed limiting device, 3A ... Changeover switch, 3B ... Operation switch, 4 ... Solenoid valve, 5 ...
… Switch for detecting the highest gear, 6 …… Warning circuit, 6A …… Speed detection sensor, 6B …… Buzzer, 6C …… Warning lamp.

Claims (1)

[Scope of utility model registration request] 1. A fuel regulating actuator capable of regulating a fuel supply amount to an internal combustion engine, a solenoid valve for switching the fuel regulating actuator between a non-regulating position and a regulating position, and a highest gear of a transmission of a vehicle is selected. Detection switch that sets the electric path to the solenoid valve to the conductive state when it is detected, and the switch that can switch the electric path to the highest step detection switch to the conductive / non-conductive state by the driver's manual operation. A vehicle speed limiting device that includes a switch and an operation switch that is interlocked with the changeover switch and that is in a non-conductive state when the changeover switch is in a conductive state and is in a conductive state when the changeover switch is in a non-conductive state; When connected in series with the operation switch and the changeover switch is set to the non-conducting electric path to the highest stage detection switch It is composed of a buzzer forming a column circuit and a warning circuit having a speed detection switch connected to the series circuit and conducting a circuit to the buzzer when a predetermined maximum speed is reached. When the electric path to the stage detection switch is set to the conductive state, the solenoid valve is operated by turning on / off the highest stage switch to regulate fuel, and the electric line between the changeover switch and the highest stage detection switch is connected. When set to the non-conduction state,
A safe driving apparatus for a vehicle, wherein the switches, a vehicle speed limiting device, and a warning circuit are connected so as to operate the buzzer by turning on / off the speed detection switch.