CN111813090B - Method for integrating self-locking function of controller - Google Patents

Abstract

The invention discloses a method for integrating a self-locking function of a controller, which relates to engine control and solves the technical problems of poor reliability and poor data confidentiality in the current self-locking through auxiliary equipment. The method includes: a locking device is installed in the controller flag; receive the self-locking control instruction, when the self-locking control instruction is a locking instruction, set the state of the locking flag to the locked state; when the self-locking control instruction is an unlocking instruction, set the state of the locking flag to non- Locked state; when the controller receives the key switch signal, it starts the power-off delay function and saves the state of the locked flag; when the controller is powered on next time, the controller reads the last saved state of the locked flag ;The controller controls the engine to run according to the state of the lock flag. The controller of the invention changes and saves the state of the locking sign according to the self-locking control command, and performs self-locking or unlocking of the engine according to the state of the locking sign, and has high reliability and good confidentiality.

Description

A method for controller integrating self-locking function

technical field

The present invention relates to engine control, and more particularly, it relates to a method for integrating a self-locking function in a controller.

Background technique

The controller is the key component of the engine. Control strategies such as engine fuel injection, intake and exhaust control, OBD fault calibration, and additional functions are the core competitiveness of the engine. At present, the mainstream products on the market are all electronically controlled engines, but there are also a small number of mechanical and electronically controlled engines. Among them, mechanical and electronically controlled engines cannot realize the self-locking function, while mainstream electronically controlled engines mostly use external auxiliary The device realizes the self-locking function. From different perspectives, the self-locking function is the most core market competitiveness technology. It plays different roles for different markets, such as: main engine factory, supporting factory, leasing market, etc. When the customer fails to pay the rent on time, it has the authority Manufacturers can turn on the self-locking function to stop the engine from working.

At present, the mainstream technical route in the market to realize the self-locking function is to achieve the self-locking goal of the whole machine with the addition of an electronically controlled engine and an auxiliary control system. This functionality is essentially guaranteed. At the same time, the auxiliary equipment is developed and installed by external personnel. When the auxiliary equipment is working normally, it needs to monitor and read the basic operating parameters of the engine, so it involves the confidentiality of the engine data. At the same time, it cannot provide information on the engine road map and customers. The real working conditions are kept confidential.

Contents of the invention

The technical problem to be solved by the present invention is aimed at the above-mentioned deficiencies of the prior art, and the purpose of the present invention is to provide a method for integrating a self-locking function of a controller with high reliability and good security.

The technical solution of the present invention is: a method for integrating a self-locking function with a controller, comprising:

There is a lock mark inside the controller;

The controller receives the self-locking control instruction, and when the self-locking control instruction is a locking instruction, sets the state of the locking flag to the locked state; when the self-locking control instruction is an unlocking instruction, sets The state of the locked flag is set to an unlocked state;

When the controller receives the key switch signal, it starts the power-off delay function and saves the state of the lock flag, and the controller is powered off;

When the controller is powered on next time, the controller reads the state of the locked flag saved last time;

The controller controls the engine to run according to the state of the lock flag.

As a further improvement, when the state of the locked flag is locked, the controller controls the oil output of the engine to be limited to 0, and the engine cannot be started; when the state of the locked flag is In the unlocked state, the controller controls the engine to start normally.

Further, the controller receives the self-locking control instruction sent by the local computer through the serial port or the bus.

Further, the controller receives the self-locking control instruction sent by the remote computer through the terminal.

Further, the controller is connected to the terminal through a serial port or a bus.

Further, the controller needs to receive correct permission information before changing the state of the locked flag.

Further, the authority information has levels and timeliness.

Further, the self-locking control instruction received by the controller is valid only when the engine is off; otherwise, it is invalid.

Beneficial effect

Compared with the prior art, the present invention has the advantages that: the present invention sets the lock flag in the controller. When the controller receives the lock command, the lock flag is set to the locked state. When commanding, set the locked flag to the unlocked state. When the key switch is turned off, the current state of the locked flag is saved. When the controller is powered on next time, the saved state of the locked flag is read, and the controller according to The state of the locked sign controls the engine to self-lock or unlock; the present invention saves the auxiliary equipment, and can avoid the problem of self-locking function failure in the traditional technology when the auxiliary equipment is removed or malfunctions, because the basic operating parameters of the engine will not Complementing auxiliary equipment monitoring and reading, the confidentiality of engine data is good, and at the same time, the cost of engine self-locking is lower by eliminating auxiliary equipment.

Description of drawings

Fig. 1 is the control flowchart of the present invention.

Detailed ways

The present invention will be further described below in conjunction with the specific embodiments in the accompanying drawings.

Referring to Figure 1, a method for integrating a self-locking function with a controller, including:

There is a lock mark inside the controller;

The controller receives the self-locking control instruction, and when the self-locking control instruction is a locking instruction, the state of the locking flag is set to the locked state; when the self-locking control instruction is an unlocking instruction, the state of the locking flag is set to non- locked state;

When the controller receives the key switch signal, it starts the power-off delay function and saves the state of the lock flag, and the controller is powered off;

When the controller is powered on next time, the controller reads the state of the last saved lock flag;

The controller controls the engine to run according to the state of the lock flag.

The controller controls the engine to run according to the state of the lock flag. Specifically, when the state of the lock flag is locked, the controller controls the output oil of the engine to be limited to 0, and the engine cannot be started; when the state of the lock flag is not In the locked state, the controller controls the engine to start normally.

The controller receives the self-locking control command sent by the local computer through the serial port or the bus. The local computer is located at the engine manufacturer, which is mainly used for the engine manufacturer to self-lock the factory engine to prevent the engine from being used improperly or illegally started. Starting the engine in an engine starting environment may cause engine damage. Or the controller receives the self-locking control command sent by the remote computer through the terminal, the controller is connected to the terminal through a serial port or bus, the terminal is connected to the remote computer through the network, the remote computer is located at the engine manufacturer, and the terminal is located at the customer, such as the main engine factory and supporting factory Or in the rental market, the terminal can be a mobile terminal, computer or mobile phone, which can self-lock the engine of the customer who does not perform the contract, forcing the customer to perform the contract.

The controller needs to receive correct authority information before changing the state of the lock flag, and only manufacturers or customers with authority can turn on the self-lock function to stop the engine from working, or to unlock the engine. Permission information has levels and timeliness, that is, different levels of permissions can perform different operations, and permission information is valid only when it is entered at a valid time.

Only when the engine is off, the self-locking control command received by the controller is valid; otherwise, it is invalid, that is, the self-locking control command can be sent to the controller when the key switch is closed and the ignition is not on, so as to prevent the engine from being affected normally. .

The invention saves the auxiliary equipment, and can avoid the problem of self-locking function failure in the traditional technology when the auxiliary equipment is disassembled or malfunctions. Since the basic operating parameters of the engine cannot be monitored and read by the auxiliary equipment, the confidentiality of the engine data is good , At the same time, saving the auxiliary equipment makes the cost of the engine self-locking lower. The present invention integrates the self-locking function in the autonomous controller without adding any auxiliary device, without changing the arrangement and configuration, which is simple for customers and OEMs and has low maintenance cost, and the self-locking function of the present invention does not require To flash engine data, you only need to power off to save or power on to read the state of the lock flag. This function is simple and can avoid data flashing errors caused by operator misoperation.

The above are only preferred embodiments of the present invention, and it should be pointed out that for those skilled in the art, some deformations and improvements can be made without departing from the structure of the present invention, and these will not affect the effect and implementation of the present invention. Patent utility.

Claims (5)

1. A method for integrating self-locking functions of a controller, comprising:

a locking mark is arranged in the controller;

the controller receives a self-locking control instruction, and when the self-locking control instruction is a locking instruction, the state of the locking mark is set to be a locking state; when the self-locking control instruction is an unlocking instruction, the state of the locking mark is set to be a non-locking state;

when the controller receives a key switch off signal, starting a power-off delay function and storing the state of the locking mark, wherein the controller is powered off;

when the controller is electrified next time, the controller reads the state of the last stored locking mark;

the controller controls the engine to run according to the state of the locking mark;

the controller needs to receive the correct authority information before changing the state of the locking mark;

the authority information has the grade and timeliness;

only when the engine is in a closed state, the self-locking control instruction received by the controller is valid; otherwise, the method is invalid.

2. The method for integrating a self-locking function of a controller according to claim 1, wherein when the state of the lock flag is a locked state, the controller controls the output oil amount of the engine to be limited to 0, and the engine cannot be started; and when the state of the locking mark is a non-locking state, the controller controls the engine to start normally.

3. The method for integrating self-locking functions of a controller according to claim 1, wherein the controller receives a self-locking control command sent by a local computer through a serial port or a bus.

4. The method for integrating self-locking functions of a controller according to claim 1, wherein the controller receives a self-locking control command sent by a remote computer through a terminal.

5. The method for integrating self-locking functions of a controller according to claim 4, wherein the controller is connected to the terminal through a serial port or a bus.