JPS6255384A - Keyless entry apparatus of car - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a keyless entry device for a motor vehicle.

Conventional technology By inputting a code signal from the outside of the door, the keyless entry control circuit installed inside the car compares the input code signal with a code registered and stored in advance. A keyless entry device for a car that determines that they match, outputs an output to unlock the door, activates the actuator, unlocks the door, and allows the door to be opened without a key. It has been developed in the past and has already been published, for example, in Japanese Patent Laid-Open No. 58-222267.

Problems to be Solved by the Invention In general, vehicles equipped with keyless entry devices use a pre-registered code that serves as the key, so they cannot be parked normally except when parked for a relatively long period of time. There are many times when you leave the key in the ignition switch and lock the door.

In this way, when parking with the key left inside the vehicle and only the doors locked, a person who wants to enter the vehicle for the purpose of driving can input a code signal from outside and operate the keyless entry device to open the door. Releasing the lock makes it easier for you to accomplish your goal, but for example, if you need someone else to retrieve something you left behind in the car, or if you have children or other people If you go to a parked car first and ask them to wait inside, or if you enter the car without the purpose of driving, you must tell them the code for the keyless entry device. When people use a keyless entry device to unlock the door and enter the vehicle, they are in a state where they are able to drive, even if they are using force, for the purpose of driving.For example, while children are waiting inside the vehicle, If you accidentally turn the key while it is still inserted in the ignition switch, the engine will start and it is extremely dangerous.

The main purpose of the present invention is to address the above-mentioned power problem in vehicles equipped with keyless entry devices.

Means for Solving the Problems The present invention provides a coded signal input means capable of inputting and operating a coded signal from outside the vehicle, and a code in which the coded signal inputted by the coded signal input means is registered and stored in advance. Equipped with a keyless entry device consisting of a keyless entry control circuit that issues a door unlocking signal when the keyless entry control circuit matches the door locking signal, and an actuator that unlocks the door locking device using the door unlocking signal from the keyless entry control circuit. In the automobile, a switch means is provided in the starter circuit of the engine which is energized and driven by the ON operation of the ignition switch, and when a formal code signal is input through the code signal input means, the keyless entry control circuit generates a signal for unlocking the door. The switch means is configured to emit a signal to turn on the switch means, and in addition to the above-mentioned regular code signal, other entry code signals are stored in advance in the keyless entry control circuit, and the keyless entry control circuit is configured to emit a signal to turn on the switch means. It is characterized in that the keyless entry control circuit is configured to issue a door unlocking signal and a signal to turn off the switch means when the entry code signal is input.

Effects In the above, for example, when you ask another person to retrieve luggage that you forgot to leave in the car, or when you let the children go to the car first and have them wait in the parked car. , if you are driving and try to open the door,
Only the entry code signal will be taught. Then, by inputting this entry code signal from the code signal input means, the keyless entry control circuit emits a signal to release the door lock and a signal to turn off the switch means provided in the engine starter circuit. Although it is possible to open the door and enter the vehicle interior, it is not possible to start the engine even if the key is turned.The next step is to input a regular code signal from the code signal input means and the keyless entry control circuit is activated. It is held until a signal to turn on the switch means is issued.

Example An embodiment of the present invention will be described below with reference to the accompanying drawings.

In FIG. 1, reference numeral 1 denotes a code signal input means, and the code signal input means 1 is connected to, for example, a numeric key switch provided on a door outer panel or a vehicle body outer panel, or a hook operation of a door outer handle. Any structure capable of inputting and operating a combination of a plurality of numbers or a coded signal such as Morse code from outside the vehicle may be adopted, such as an outside handle switch that operates on and off.

2 is a keyless entry control circuit; 3 is an actuator provided in the door lock device section for unlocking the door lock device; the actuator 3 may be, for example, a solenoid device or an electric motor; It will be done.

The encrypted signal input means 1. keyless entry ffi [
The control circuit 2 and actuator 3 constitute a keyless entry device that has been commonly used in the past, and receives a predetermined regular code signal α from the code signal input means 1.
When the code signal α is input to the keyless entry control circuit 2, the keyless entry control circuit 2 issues a door unlocking signal bya-, and the actuator 3 releases the door unlocking signal bVc. It works and allows you to open the door without a key.

In the present invention, a switch means 6 such as a relay is provided in the starter circuit 5 of the engine, which is made up of a starter motor that is energized and driven when the ignition switch 4 is turned off, and when the switch means 6 is turned on, the key 7 is inserted and When the ignition switch 40 is turned on by manual operation, the starter motor rotates and the engine can be started. However, when the switch means 6 is off, the starter motor is not energized even if the ignition switch is turned on using the key 7. The keyless entry control circuit 2 of the keyless entry device is configured to make it impossible to start the engine, and sends a door unlocking signal to the keyless entry control circuit 2 of the keyless entry device to cause the actuator 3 to operate to unlock the door by inputting the regular code signal α. A logic for emitting a signal C to turn on the switch means 6, and a logic for emitting a signal C for unlocking the door when an entry code signal d different from the regular code signal α is input, and also for turning on the switch means 6. The logic of the keyless entry control circuit 2 is summarized as shown in the flowchart of FIG. 2.

In the above, when a person other than the owner of the vehicle who does not intend to drive the vehicle is asked to enter the vehicle interior using the keyless entry device, the entry code signal is taught. The entry code signal d is sent to the code signal input means 1.
If too many inputs are made, the actuator 3 will be actuated by the door lock release signal 6, the door lock will be released, and the door can be opened to enter the vehicle interior, but at the same time, the switch means 6 will be turned off by the signal e which turns off the switch means 6. When the ignition switch is turned off, even if the key 7 is left inserted in the ignition switch section 4, the engine cannot be started using the key 7. There is no danger of it starting up.

When the switch means 6 is in the OFF state due to the input of the entry code signal d, the normal code signal α is input from the code signal input means 1 to the keyless entry [1 circuit 2, and the keyless entry control circuit 2 sends a signal for door unlocking. It is held until a signal C is generated to simultaneously turn on the switch means 6.

Incidentally, if a normally closed relay is used as the switch means 6 as in the illustrated embodiment, the signal C to turn on the switch means 6 is
may be zero, but instead it is necessary to provide a reset mechanism that cancels the signal @ that keeps the switch means 6 in the OFF state by inputting a regular coded signal and returns it to its original state.

Effects of the Invention According to the present invention configured as described above, when opening the door using the keyless entry device and getting into the vehicle, there are differences depending on whether the vehicle is entered for the purpose of driving or not for the purpose of driving. By setting a code to prevent the engine from starting when entering a car with the code signal input when the purpose is not to drive, for example, it is possible to let children get on the car first and wait. Accidents such as the engine starting due to tampering can be completely prevented, and the same safety can be achieved.In addition, when parking the vehicle, the code signal for entry can be entered in advance from the code signal input means and the starter circuit can be operated. If you turn off the switch provided in the vehicle, lock the door, and leave the vehicle, the off state of the switch will remain until the next time you input a legitimate code signal, so even if your key is stolen while you are parked, However, the engine will never start even if the vehicle is used, and it can even surpass the above-described effect, which has a significant anti-theft effect on automobiles, and can bring about a great practical effect.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing an embodiment of the present invention, and FIG. 2 is a flowchart showing control logic by the keyless entry control circuit of FIG. 1. Entry control circuit, 3... Actuator, 4... Ignition switch, 5... Starter circuit, 6... Switch means, 7... Key. that's all

Claims (1)

[Claims] A code signal input means capable of inputting and operating a code signal from outside the vehicle, a keyless entry control circuit that issues a door unlock signal based on the code signal input from the code signal input means, and a door unlock of the keyless entry control circuit. In a vehicle equipped with a keyless entry device consisting of an actuator that is activated by a signal to unlock the door, a switch means is provided in the starter circuit of the engine that is energized by turning on the ignition switch, and the keyless entry control circuit is equipped with a switch means. , a logic that issues a door unlocking signal to the actuator by inputting a regular coded signal, and also a signal that turns on the switch means and enables the engine to start; and input of an entry signal different from the regular coded signal. A keyless entry device for a motor vehicle, characterized in that logic is set to issue a signal for unlocking the door to the actuator, and also issue a signal for turning off the switch means and disabling starting of the engine.