KR19990068582A - Car electronic controller for preventing rapid start - Google Patents

Abstract

The present invention relates to a vehicle acceleration protection electronic controller that prevents abnormal sudden start at the start of the vehicle operating independently of the vehicle electronic controller as shown in FIG. 1. It receives information from the sensor 10, the engine speed sensor 11, the accelerator sensor 12, the automatic transmission position sensor (forward, reverse, neutral), the ignition switch sensor 14, the brake sensor 15. It can receive and analyze the driving information when the car starts and starts, and has a memory 31 that stores the abnormal check rule to determine whether the analyzed driving information is an abnormal sudden start by comparing with these rules, and when an abnormal sudden start sounds. Alternatively, the abnormal warning display unit 32 and the controller 30 indicating the message voice or text warning are controlled to cut off the supply of battery power supplied to the fuel injection coil. And a switch 33 which cuts off the supply of the battery power supplied to the ignition coil to control the sudden start and stop of the driver's driving operation or abnormal operation of the vehicle electronic controller. Irrespective of the occurrence of abnormal sudden oscillation, especially in automatic transmission cars, there is an effect that prevents.

Description

Car electronic controller for preventing rapid start}

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an electronic vehicle defense electronic controller, and more particularly, to a controller for preventing an accidental sudden start at the start of an automatic transmission vehicle and preventing an accident and starting a safe start.

Typically, an electronic controller for a vehicle optimally drives an automobile engine by receiving information from various sensors of a vehicle and adjusting fuel injection amount.

1 shows the configuration of an electronic vehicle controller. Detects the vehicle speed and engine speed from the vehicle speed sensor 10 and the engine speed sensor 11, and determines the speed by detecting the position of the accelerator from the accelerator sensor 12, and sets the gear shift switch sensor 13 and the ignition switch. The controller 14 obtains driving information of the vehicle from the sensor 14 and the brake sensor 15 and obtains information from other sensors 16 such as an air volume and an oxygen sensor, and calculates the fuel injection amount that can cause proper engine rotation. By controlling the fuel injection amount and controlling the injection time of the fuel injection coil, the fuel injection amount is controlled, and the ignition coil 18 is operated to optimally drive the automobile engine to operate the vehicle.

However, the conventional electronic controller for automobiles corrects fuel increase appropriate for cold start according to fuel compensation when cooling the engine according to coolant temperature, starting position signal of start switch and coolant temperature information, and corrects according to various other conditions. Will be done. At this time, if an abnormality occurs in the coolant temperature sensor, it is not possible to detect the correct coolant temperature, thereby correcting the abnormal state, which may cause a sudden start at the start of the vehicle, and may cause a sudden start by abnormal control of the electronic controller. In addition, there is a high possibility of causing an accident by embarrassing when a driver suddenly causes a sudden start at the start of the driver. Indeed, such a rapid accident is a situation that is occurring a lot of problems have emerged. As a way to prevent such sudden start, there is a shift lock device that prevents the shift lever from mechanically moving without the driver applying the brakes, but it is preparing for safety, but it does not prevent accidents completely and reduces the possibility of sudden start in foreign countries. In particular, it has become a social problem, such as sudden start-up of an automatic transmission vehicle starts leading to an accident.

Therefore, the present invention has been made to solve the above problems, by inputting a sensor input that can detect the sudden start or abnormal start state of the existing vehicle electronic controller in a separate defense controller, the abnormal sudden start or driver of the existing vehicle electronic controller Equipped with a sudden protection electronic controller that detects abnormal starting or abnormal starting due to a mistake in the engine by stopping the fuel injection or blocking the ignition of the ignition coil to reduce or stop the engine output and make a safe start. In particular, it is to prevent abnormal starting of a vehicle equipped with an automatic transmission.

1 is an overall configuration diagram of a vehicle electronic controller according to the prior art

2 is a schematic view of the overall configuration and interconnection of the vehicle acceleration protection electronic controller and the conventional electronic controller according to the present invention

<Description of the symbols for the main parts of the drawings>

10: vehicle speed sensor 11: engine speed sensor

12: Accelerator sensor (Drottle valve sensor)

13: Gear shift switch sensor (forward, reverse, neutral) 14: Ignition switch sensor

15 brake sensor 16 other sensors

17: fuel injection coil 18: ignition coil

19: other actuator 20: automotive electronic controller

30: controller 31: abnormal check rule storage memory

32: abnormal warning display part 33, 35: switch

34: battery

Hereinafter, exemplary embodiments of the present invention will be described with reference to the accompanying drawings.

Figure 2 shows the overall configuration of the electronic controller and the rapid defense electronic controller according to the present invention and the interconnection diagram with the existing electronic controller.

The rapid-start defense electronic controller is a controller 30 which performs overall control, and the controller is a vehicle speed sensor 10, an engine speed sensor 11, an accelerator sensor 12, an automatic transmission position sensor (forward, reverse, neutral), Information is input from the ignition switch sensor 14 and the brake sensor 15.

In addition, a rule for determining an abnormal state is stored in the memory 31 in which the abnormal check rule is stored. This rule extracts an abnormal oscillation rule or a safety start rule from an expert and processes and converts it so that the controller can recognize it.

As an example of a rule extracted by an expert,

Rule 1: If the rate of change of vehicle speed changes sharply above this limit from the time of starting, it is abnormal.

Rule 2: If the vehicle speed increases more than the specified ratio within the specified time with the brake applied from the start, it is abnormal.

And so on. Expert knowledge of abnormal conditions of sudden start at the start of the expert's car is stored in the form of rules of the expert system. In addition, part of the abnormal diagnosis rule memory has a nonvolatile memory space for reading and writing, so that the driver's driving operation and the driving information of the driver at the time of the last start-up are updated and recorded in two or three exhibition halls, so It is possible to know later whether the phenomenon is a driver's driving mistake or a malfunction of the vehicle control device.

32 is an error warning display. If an error occurs, the alarm status (or warning voice message) is displayed along with a text message or an error can be displayed. do.

33 is controlled by the controller 30 by a switch to block the supply of the battery power supplied to the fuel injection coil. 34 is a battery, and 35 is a switch to control the controller 30 to cut off the supply of battery power supplied to the ignition coil. 20 is a conventional automotive electronic controller. Sensors and actuators 10 through 19 are identical to the sensors and actuators in FIG.

The operation principle of the present invention will be described with reference to FIG.

When the driver turns on the vehicle, the electronic controller 20 for the vehicle is connected to the vehicle from various sensors such as the vehicle speed sensor 10, the engine speed sensor 11, the accelerator sensor 12, and the like attached to each part of the vehicle. The fuel injection amount is calculated by controlling the opening and closing time of the fuel injection coil 17 by controlling the opening and closing time of the fuel injection coil 17 by obtaining the driving state information to determine the fuel injection amount, and operating the ignition coil 18 to operate the automobile engine. Drive your car optimally. In this case, the controller 30 detects the vehicle speed sensor 10, the engine speed sensor 11, the accelerator sensor 12, to detect sudden start due to an abnormal operation of the electronic controller of the vehicle or immature starting of the driver when starting. From the automatic transmission shift lever position sensor 13, the ignition switch sensor 14, and the brake sensor 15, the driver receives the driving state information to detect the sudden start at the start-up. This operation information is processed and analyzed to determine whether or not the sudden start abnormal state is compared with the abnormal rule for determining the abnormal state in the memory 31 in which the abnormal check rule and the safety start rule are stored.

In the abnormal state, the controller 30 turns off the switch 33 while detecting the vehicle speed and the engine speed of the vehicle from the vehicle speed sensor 10 or the engine speed sensor 11 so that the starting pattern is in a normal state. 17) by blocking the battery electricity supplied to the vehicle electronic controller 20 to drive the fuel injection coil 17 to prevent the fuel injection to the car engine to reduce the engine output to control to the normal start. If the vehicle is at the normal vehicle speed increase rate, the controller 30 causes the switch 33 to be in an on state, thereby causing the vehicle electronic controller to control the fuel injection coil. If the abnormal state or the abnormal state continues to be impossible to control, turn off the switches 33 and 35 until the engine stops, and then turn on the switches 33 and 35 when the engine stops. Restore to normal state.

In addition, the controller 30 turns off the switch 33 and simultaneously turns off the switch 35 so that the ignition coil is not driven by cutting off the power supplied to the ignition coil even when the vehicle electronic controller 20 drives the ignition coil. do.

In addition, the controller 30 provides a warning sound or an abnormal warning display through the abnormal warning display unit 32 when an abnormality is detected at start-up.

In addition, the controller 30 updates and writes the driver's driving operation and vehicle driving information at the time of the last start-up to a nonvolatile memory space capable of reading and writing in a part of the abnormal check rule memory, so that a sudden sudden phenomenon may occur. Allows the driver to determine later whether the driver's driving mistake or the vehicle control unit is malfunctioning.

In addition, when the driver starts the vehicle without pressing the brake at the start, the controller 30 turns off the switches 33 and 35 to prevent starting, and brakes with a warning sound, text, or guide through the abnormal warning display. To do that. This determination is made by the controller 30 by the rules in the abnormal check rule memory 31.

By the operation principle of the controller 30 as described above, the controller of the present invention prevents the sudden start at the start of the vehicle electronic controller so that the driver can be a safe driving.

Therefore, the rapid start protection controller of the present invention constructed and operated as described above controls the sudden start to the normal start state regardless of the sudden start due to an abnormal sudden start of the electronic controller of the vehicle or the start or start of the driver when the driver starts or stops the engine. It is effective to prevent accidents caused by sudden start by stopping.

Claims (3)

As shown in FIG. 1, a controller 30 performing overall control independently of the vehicle electronic controller 20 and the controller 30 includes a vehicle speed sensor 10, an engine speed sensor 11, and an accelerator sensor 12. ), The automatic transmission position sensor (forward, reverse, neutral), the ignition switch sensor 14, the brake sensor 15 is to receive information from the start-up of the car when driving information can be received and analyzed it. The memory 31 having an abnormal diagnosis rule extracted in advance from the expert is stored to determine whether the analyzed operation information is an abnormal oscillation or a safe start state by comparing the rules with alarms, and a warning sound or a message sound or a text alert when an abnormal emergency is started. The switch 33 which cuts off the supply of the battery power supplied to the fuel injection coil controlled by the abnormal warning display unit 32 and the controller 30, and the switch 35 which cuts off the supply of the battery power supplied to the ignition coil are shown. Equipped with a sudden defense electronic controller, characterized in that for controlling the rapid oscillation According to claim 1, when the vehicle is abnormally started as a means for controlling the power supply to the fuel injection coil by installing a separate switch 33 to the battery power supply connection of the fuel injection coil 17, the controller 30 Rapid protection electronic controller, characterized in that by controlling the on-off ratio to turn off the switch or safe start to stop the driving of the fuel injection coil independent of the vehicle electronic controller or to control the rapid start by controlling the drive [4] The controller 30 of claim 1, wherein a separate switch 35 is installed at the battery power connection of the ignition coil 18 as a means for controlling the vehicle when the vehicle suddenly starts abnormally. Rapid defense electronic controller, characterized in that by controlling the on-off ratio to stop the driving of the ignition coil or to control the rapid start by controlling the drive