Electric loader locking control system and control method

Abstract

The invention discloses an electric loader locking control system and method, and relates to the field of electric loader electric control systems, the electric loader locking control system comprises a one-key starting module, the one-key starting module is electrically connected with an instrument operation module, a whole vehicle control module, a battery system module and a whole vehicle electric control module; the whole vehicle control module is connected with the instrument operation module, the battery system module and the whole vehicle electric control module through can wires. According to the electric loader locking control system and control method, unauthorized personnel are effectively prevented from starting the loader through a password verification mechanism, and the risk of possible misoperation and theft is avoided.

Description

Technical Field

[0001] The present invention mainly relates to the technical field of electric loader electronic control systems, and in particular to an electric loader vehicle locking control system and a control method. Background Art

[0002] Driven by the increasingly stringent national environmental protection requirements and the continued rise in international oil prices, electric loaders are now being used more and more. As electric loaders become more and more versatile, the application of one-button start modules and large-screen instruments makes it possible to prevent the theft of the entire vehicle by entering a password.

[0003] After a traditional loader completes the power-on operation by using the key to switch to ACC and ON, the entire vehicle directly enters the working state. There is no prevention measure in the event of the entire machine being stolen, which poses a high risk.

[0004] Traditional loaders do not have a large touch screen, and the instrument only has a display function. It is impossible to enter a password, and it is impossible to control the entire machine through software control to power on the entire machine through password operation. This makes the entire machine easy to be stolen after the key is inserted, which poses a high risk.

[0005] Therefore, it is necessary to add a password input function to the instrument module to enable the VCU to perform password monitoring and thus prevent the entire vehicle from being stolen. Summary of the invention

[0006] Based on this, the purpose of the present invention is to provide an electric loader locking control system and control method to solve the technical problems raised in the above background technology.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: The present invention provides an electric loader vehicle locking control system, comprising a one-button start module, the one-button start module is electrically connected to an instrument operation module, a vehicle control module, a battery system module and a vehicle electronic control module; the vehicle control module is connected to the instrument operation module, the battery system module and the vehicle electronic control module via a CAN line.

[0008] According to one embodiment of the present invention, the battery system module includes a BMS unit and a main negative relay.

[0009] According to one embodiment of the present invention, the vehicle electronic control module includes a main positive relay, a precharge relay, a precharge resistor, a T-MCU, a P-MCU, a DCDC and an ACM.

[0010] According to one embodiment of the present invention, the precharge relay is connected in series with the precharge resistor, and the precharge relay and the precharge resistor are connected in parallel with the main positive relay.

[0011] According to one embodiment of the present invention, the main positive relay and the main negative relay are both electrically connected to the T-MCU, the P-MCU, the DCDC, and the ACM.

[0012] According to one embodiment of the present invention, the main positive relay and the main negative relay are both electrically connected.

[0013] According to one embodiment of the present invention, the T-MCU is used to control the T-Motor, the P-MCU is used to control the P-Motor, the DCDC is used to control the battery, and the ACM is used to control the air pump motor.

[0014] According to the above technical solution of an electric loader locking control system, a control method of an electric loader locking control system will also be provided, including the following steps: step 1, one-button start; one-button start operation is performed through the one-button start module to wake up the instrument operation module, the vehicle control module, the battery system module and the vehicle electronic control module; step 2, password verification; the instrument operation module enters the password input interface, waits for the password to be entered, and the password monitoring flag determines the password and sends it to the vehicle control module through the CAN line; step 3, main negative relay control; the vehicle control module requests the battery system module to power on according to the determination result of the password monitoring flag, and after completing the main negative relay control in the battery system module, the power-on completion status is fed back; step 4, main positive relay control; the vehicle control module requests the vehicle electronic control module to complete the main positive pre-charge relay and the main positive relay control according to the determination result of the password monitoring flag, and feeds back the power-on completion status; step 5, electronic control adjustment; the vehicle control module enables or disables T-MCU, P-MCU, DCDC, ACM and air conditioning according to the determination result of the password monitoring flag.

[0015] According to one embodiment of the present invention, when the password is entered correctly, the password monitoring flag is set to 1; when the password is entered incorrectly or no password is entered, the password monitoring flag is set to 0.

[0016] According to one embodiment of the present invention, the vehicle control module continuously monitors the status of the password monitoring flag sent by the instrument operation module through the CAN line. When the password monitoring flag is continuously monitored to be 1, the T-MCU and the P-MCU are enabled through the CAN line; when the password monitoring flag is monitored to be 0, the T-MCU and the P-MCU are not enabled, the air conditioner is not enabled, and the ACM and DCDC are enabled at the same time.

[0017] In summary, the present invention mainly has the following beneficial effects:

[0018] The electric loader locking control system and control method of the present invention effectively prevents unauthorized persons from starting the loader through a password verification mechanism, thereby avoiding the risk of misoperation and theft.

[0019] The vehicle control module continuously monitors the instrument password flag status 5 times through the CAN line. Only when the password monitoring flag is 1 for 5 consecutive times, it is considered that the password input is correct and the next operation is carried out. This multiple monitoring mechanism can effectively avoid misoperation caused by accidental factors and further improve the reliability of the system.

[0020] When the password monitoring flag is 0, the vehicle control module does not enable T-MCU and P-MCU, and the travel motor and working motor cannot work. At the same time, the air conditioner is not enabled, but the ACM air pump control module is enabled to make the vehicle air brake system work normally. The DCDC is also enabled, and the DCDC reduces the battery voltage to a low-voltage working voltage to power the low-voltage equipment of the vehicle.

[0021] This avoids the situation where the low-voltage electrical equipment of the entire vehicle continues to work for a long time without entering the password, causing the low-voltage battery to run out of power. This extends the service life of the low-voltage battery and reduces problems such as difficulty in starting equipment due to battery power loss. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a framework diagram of the connection mode of the control system modules of the present invention;

[0023] Figure 2 It is the overall structural framework diagram of the control system of the present invention;

[0024] Figure 3 It is a flow chart of the control method of the present invention.

[0025] Description of the drawings: 1. One-button start module; 2. Instrument operation module; 3. Vehicle control module; 4. Battery system module; 5. Vehicle electronic control module. DETAILED DESCRIPTION

[0026] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0027] The following describes an embodiment of the present invention based on its overall structure.

[0028] Example

[0029] Please refer to the attached Figure 1As shown, in a preferred embodiment of the present invention, an electric loader vehicle locking control system includes a one-button start module 1, and the one-button start module 1 is electrically connected to an instrument operation module 2, a vehicle control module 3, a battery system module 4 and a vehicle electronic control module 5; the vehicle control module 3 is connected to the instrument operation module 2, the battery system module 4 and the vehicle electronic control module 5 via a CAN line.

[0030] It should be noted that, in the present embodiment, after the one-button start operation is performed through the one-button start module 1, the instrument operation module 2, the vehicle control module 3, the battery system module 4 and the vehicle electronic control module 5 are all awakened. After self-checking without any problems: the instrument operation module 2 enters the password input interface and waits for the password to be entered: if no password is entered or the password is entered incorrectly, the password monitoring flag position is 0; if the password is entered correctly, the password monitoring flag position is 1; the above password monitoring flag position values ​​are sent to the vehicle control module 3 via the CAN line.

[0031] Please refer to the attached Figure 1-3 As shown, in another preferred embodiment of the present invention, the battery system module 4 includes a BMS unit and a main negative relay, the vehicle electronic control module 5 includes a main positive relay, a precharge relay, a precharge resistor, a T-MCU, a P-MCU, a DCDC and an ACM, the precharge relay is connected in series with the precharge resistor, the precharge relay and the precharge resistor are connected in parallel with the main positive relay, the main positive relay and the main negative relay are both electrically connected to the T-MCU, the P-MCU, the DCDC and the ACM, the main positive relay and the main negative relay are both electrically connected to the air conditioner, the T-MCU is used to control the T-Motor, the P-MCU is used to control the P-Motor, the DCDC is used to control the battery, and the ACM is used to control the air pump motor.

[0032] It should be noted that, in this embodiment, the vehicle control module 3 requests the battery system module 4 to power on, and after completing the control of the main negative relay in the battery system module 4, the power-on completion status is fed back.

[0033] The vehicle control module 3 requests the vehicle electronic control module 5 to complete the control of the main positive pre-charge relay and the main positive relay, and feedbacks the power-on completion status. The vehicle control module 3 monitors the instrument password flag status through the CAN line for 5 times and all are 1. At this time, the T-MCU (traction motor control unit) and P-MCU (power motor control unit) are enabled through the CAN line. At this time, the travel motor and the working motor are working;

[0034] The vehicle control module 3 monitors the instrument password flag status through the CAN line to 0. At this time, the T-MCU and P-MCU are not enabled, the travel motor and the working motor cannot work, the air conditioner is not enabled, and the air conditioner is not allowed to work. The ACM air pump control module is enabled to make the vehicle air brake system work normally, and the DCDC (DC to DC converter) is enabled. The DCDC reduces the battery voltage to a low-voltage working voltage to power the low-voltage equipment of the vehicle, so as to avoid the low-voltage battery being depleted due to the long-term failure to enter the password and the low-voltage electrical equipment of the vehicle working all the time;

[0035] Furthermore, the password monitoring flag is sent to the vehicle control module 3 via the CAN line, so that the vehicle control module 3 can determine whether to proceed to the next operation. Continuous monitoring of the flag (such as "1" for 5 times) can be used to prevent misoperation;

[0036] Furthermore, the CAN bus has the advantages of strong real-time performance, strong anti-electromagnetic interference ability, and long transmission distance, and is suitable for communication within the vehicle;

[0037] Furthermore, the BMS unit is a battery management system, the T-Motor is a traction motor, and the P-Motor is a power motor.

[0038] According to the above embodiments, a control method of an electric loader locking control system is also provided, comprising the following steps:

[0039] Step 1: One-key start: Perform one-key start operation through the one-key start module 1 to wake up the instrument operation module 2, the vehicle control module 3, the battery system module 4 and the vehicle electronic control module 5;

[0040] Step 2: Password verification: the instrument operation module 2 enters the password input interface, waits for the password to be entered, and the password monitoring flag determines the password and sends it to the vehicle control module 3 via the CAN line;

[0041] Step 3, main negative relay control: the vehicle control module 3 requests the battery system module 4 to power on according to the determination result of the password monitoring flag, and after completing the main negative relay control in the battery system module 4, feedback the power-on completion status;

[0042] Step 4: Main positive relay control: The vehicle control module 3 requests the vehicle electronic control module 5 to complete the main positive pre-charge relay and the main positive relay control according to the determination result of the password monitoring flag, and feedback the power-on completion status;

[0043] Step 5: Electronic control adjustment: The vehicle control module 3 enables or disables T-MCU, P-MCU, DCDC, ACM and air conditioning according to the determination result of the password monitoring flag;

[0044] When the password is entered correctly, the password monitoring flag position is 1; when the password is entered incorrectly or no password is entered, the password monitoring flag position is 0; the vehicle control module 3 continuously monitors the password monitoring flag status sent by the instrument operation module 2 through the CAN line; when the password monitoring flag is continuously monitored to be 1, the T-MCU and the P-MCU are enabled through the CAN line; when the password monitoring flag is monitored to be 0, the T-MCU and the P-MCU are not enabled, the air conditioner is not enabled, and the ACM and DCDC are enabled at the same time.

[0045] The working principle of the present invention is:

[0046] After the one-button start module 1 performs the one-button start operation, the instrument operation module 2, the vehicle control module 3, the battery system module 4 and the vehicle electronic control module 5 are all awakened. After the self-check is normal: the instrument operation module 2 enters the password input interface and waits for the password to be entered: if the password is not entered or the password is entered incorrectly, the password monitoring flag position is 0; if the password is entered correctly, the password monitoring flag position is 1, and the above password monitoring flag position values ​​are sent to the vehicle control module 3 through the CAN line;

[0047] The vehicle control module 3 requests the battery system module 4 to power on, and after completing the control of the main negative relay in the battery system module 4, it feeds back the power-on completion status.

[0048] The vehicle control module 3 requests the vehicle electronic control module 5 to complete the control of the main positive pre-charge relay and the main positive relay, and feedbacks the power-on completion status. The vehicle control module 3 monitors the instrument password flag status through the CAN line for 5 times and all are 1. At this time, the T-MCU (traction motor control unit) and P-MCU (power motor control unit) are enabled through the CAN line. At this time, the travel motor and the working motor are working;

[0049] The vehicle control module 3 monitors the instrument password flag status through the CAN line to 0. At this time, the T-MCU and P-MCU are not enabled, the travel motor and the working motor cannot work, the air conditioner is not enabled, and the air conditioner is not allowed to work. The ACM air pump control module is enabled to make the vehicle air brake system work normally, and the DCDC (DC to DC converter) is enabled. The DCDC reduces the battery voltage to a low-voltage working voltage to power the low-voltage equipment of the vehicle, so as to avoid the low-voltage battery being depleted due to the long-term failure to enter the password and the low-voltage electrical equipment of the vehicle working all the time;

[0050] The password monitoring flag is sent to the vehicle control module 3 via the CAN line, and is used by the vehicle control module 3 to determine whether to proceed to the next operation. Continuous monitoring of the flag (such as "1" for 5 times) can be used to prevent misoperation;

[0051] The CAN bus has the advantages of strong real-time performance, strong anti-electromagnetic interference ability, and long transmission distance, and is suitable for communication within the vehicle;

[0052] The BMS unit is the battery management system, the T-Motor is the traction motor, and the P-Motor is the power motor.

[0053] Although an embodiment of the present invention has been shown and described, this specific embodiment is merely an explanation of the present invention and is not a limitation of the invention. The specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions and variations to the embodiments without creative contributions as needed without departing from the principles and purpose of the present invention. However, as long as they are within the scope of the claims of the present invention, they are protected by patent law.

Claims

1. An electric loader locking control system, comprising a one-button start module (1), characterized in that The one-button start module (1) is electrically connected to the instrument operation module (2), the vehicle control module (3), the battery system module (4) and the vehicle electronic control module (5); The vehicle control module (3) is connected to the instrument operation module (2), the battery system module (4) and the vehicle electronic control module (5) via a CAN line.

2. The electric loader locking control system according to claim 1, characterized in that: The battery system module (4) comprises a BMS unit and a main negative relay.

3. The electric loader locking control system according to claim 2, characterized in that: The vehicle electric control module (5) comprises a main positive relay, a precharge relay, a precharge resistor, a T-MCU, a P-MCU, a DCDC and an ACM.

4. The electric loader locking control system according to claim 3, characterized in that: The precharge relay is connected in series with the precharge resistor, and the precharge relay and the precharge resistor are connected in parallel with the main positive relay.

5. The electric loader locking control system according to claim 3, characterized in that: The main positive relay and the main negative relay are both electrically connected to the T-MCU, the P-MCU, the DCDC, and the ACM.

6. The electric loader locking control system according to claim 3, characterized in that: The main positive relay and the main negative relay are both electrically connected.

7. The electric loader locking control system according to claim 1, characterized in that: The T-MCU is used to control the T-Motor, the P-MCU is used to control the P-Motor, the DCDC is used to control the battery, and the ACM is used to control the air pump motor.

8. A control method for a locking control system of an electric loader according to any one of claims 1 to 7, characterized in that: The following steps are involved: Step 1: One-key start: Perform a one-key start operation through the one-key start module (1) to wake up the instrument operation module (2), the vehicle control module (3), the battery system module (4) and the vehicle electronic control module (5); Step 2: Password verification: the instrument operation module (2) enters the password input interface, waits for the password to be input, and the password monitoring flag determines the password and sends it to the vehicle control module (3) via the CAN line; Step 3, main negative relay control: the vehicle control module (3) requests the battery system module (4) to power on according to the determination result of the password monitoring flag, and after completing the main negative relay control in the battery system module (4), feeds back the power-on completion status; Step 4: Main positive relay control: The vehicle control module (3) requests the vehicle electronic control module (5) to complete the main positive pre-charge relay and the main positive relay control according to the determination result of the password monitoring flag, and feedback the power-on completion status; Step 5: Electronic control adjustment: The vehicle control module (3) enables or disables the T-MCU, P-MCU, DCDC, ACM and air conditioner according to the determination result of the password monitoring flag.

9. The control method of the electric loader locking control system according to claim 8, characterized in that: When the password is entered correctly, the password monitoring flag is 1; when the password is entered incorrectly or no password is entered, the password monitoring flag is 0.

10. The control method of the electric loader locking control system according to claim 9, characterized in that: The vehicle control module (3) continuously monitors the password monitoring flag status sent by the instrument operation module (2) through the CAN line, and when it is continuously monitored that the password monitoring flag is 1, the T-MCU and the P-MCU are enabled through the CAN line; when it is monitored that the password monitoring flag is 0, the T-MCU and the P-MCU are not enabled, the air conditioner is not enabled, and the ACM and DCDC are enabled at the same time.

Images