A control method for automatically lifting the brim of an electric-exchange mining truck

Abstract

The control method for the automatic lifting brim of an electric-exchange mining truck in the present invention is as follows: The vehicle drives to the electric-exchange station and parks in place; The electric-exchange controller (T-BOX) establishes communication with the station control; The vehicle enters the electric-exchange state and feeds back to the station control, and the station control issues a start electric-exchange instruction to the vehicle control unit (VCU); The VCU feeds back the brim state of the vehicle, the station control issues a brim flipping instruction, the VCU controls to implement relevant actions, and the proximity travel switch feeds back to the VCU after detecting that the brim flipping is in place, the VCU stops controlling and feeds back the brim state to the station control; The brim state of the vehicle is clarified, the station control issues an unlocking instruction, and the T-BOX controls the unlocking; The station control starts the electric-exchange process; After the electric-exchange operation is completed, the station control issues a locking instruction, and the T-BOX controls the locking; The station control issues a brim falling-back instruction, the VCU controls and the proximity travel switch detects to implement relevant actions, and the VCU feeds back the brim state to the station control; The brim state of the vehicle is clarified, the station control judges that the electric-exchange is over and issues an instruction to exit the electric-exchange; After the electric-exchange is completed, the vehicle drives away from the electric-exchange station.

Description

Technical Field:

[0001] The present invention relates to a control method for automatically lifting the brim of a battery-swap mining truck, which belongs to the technical field of battery-swap mining trucks. Background Art:

[0002] At present, when a battery-swap mining truck in the industry enters the station control for battery swapping, the first thing to do is to lift the brim of the cargo box in place. After the battery swapping is completed, the brim of the cargo box needs to be lowered in place. To safely and efficiently achieve the lifting and lowering of the brim of the cargo box, high requirements are put forward for the software control and hardware detection of the whole vehicle. Summary of the Invention:

[0003] The present invention provides a control method for automatically lifting the brim of a battery-swap mining truck to solve the problems existing in the above-mentioned prior art. It can safely and efficiently achieve the lifting and lowering of the brim of the battery-swap mining truck, and further realize the "one-key battery swapping" of the battery-swap mining truck.

[0004] The technical solution adopted by the present invention is as follows: A control method for automatically lifting the brim of a battery-swap mining truck, the steps are as follows:

[0005] 1. A control method for automatically lifting the brim of a battery-swap mining truck, characterized in that the steps are as follows:

[0006] 1) Drive the vehicle to the battery swapping station and park it in place in the corresponding area;

[0007] 2) Turn the vehicle ignition switch to the ON position, shift the electronic shift lever to the N gear, and pull up the handbrake;

[0008] 3) Establish a communication connection between the battery swapping controller (hereinafter referred to as T-BOX) and the station control through Bluetooth;

[0009] 4) Press the battery swapping toggle switch to make the vehicle enter the battery swapping protection state. The vehicle control unit (hereinafter referred to as VCU) reports this state to the T-BOX. After the T-BOX feeds back this state to the station control, the station control issues a start battery swapping instruction to the VCU through the T-BOX;

[0010] 5) Automatically cut off the vehicle high voltage. The VCU feeds back the brim state of the vehicle to the station control through the T-BOX. The brim state is lowered in place. The station control issues an instruction to turn the brim upward to the VCU through the T-BOX. The VCU controls the vehicle to automatically turn on the high voltage and engage the power take-off. After the VCU receives the effective power take-off feedback signal, it issues a simulated throttle to provide speed for the power take-off and controls the brim to lift. When the proximity travel switch installed on the vehicle detects that the brim is lifted in place, it sends a signal to the VCU. The VCU stops issuing the simulated throttle, controls the vehicle to automatically cut off the high voltage, and at the same time feeds back the brim state to the station control through the T-BOX. At this time, the brim state is lifted in place;

[0011] 6) The VCU feeds back the hood state to the station control through the T-BOX to clarify the hood state of the vehicle. When the hood state is lifted in place, the station control issues an unlocking instruction to the T-BOX. The T-BOX controls the solenoid valve of the battery swapping base to complete the unlocking action. After the unlocking is completed, the T-BOX feeds back the completed unlocking state of the battery swapping base to the station control;

[0012] 7) The station control starts the battery swapping process: controls the relevant lifting tools to remove the old battery box from the vehicle, and then hoists the new battery box to the battery swapping base of the vehicle;

[0013] 8) After the battery swapping operation is completed, after the station control issues a locking instruction, the T-BOX controls the solenoid valve of the battery swapping base to complete the locking action. After the locking is completed, the T-BOX sends the completed locking state of the battery swapping base to the station control;

[0014] 9) The VCU feeds back the hood state to the station control through the T-BOX to clarify the hood state of the vehicle. When the hood state is lifted in place, the station control issues an instruction to the VCU through the T-BOX to flip the hood downwards. The VCU controls a series of actions such as energizing the vehicle's high voltage, engaging and disengaging the power take-off, and sending a simulated throttle signal. After the proximity travel switch installed on the vehicle detects that the hood has fallen in place, it sends a signal to the VCU. The VCU stops sending the simulated throttle signal, controls the vehicle to automatically cut off the high voltage, and at the same time feeds back the hood state to the station control through the T-BOX. At this time, the hood state is in the fallen-in-place state;

[0015] 10) The VCU feeds back the hood state to the station control through the T-BOX to clarify the hood state of the vehicle. When the hood state is in the fallen-in-place state, the station control determines that the battery swapping is over and issues an instruction to the VCU through the T-BOX to exit the battery swapping protection state;

[0016] 11) The driver resets the battery swapping toggle switch and drives the vehicle away from the station control, and the battery swapping is completed.

[0017] The present invention has the following beneficial effects:

[0018] (1). The control method for automatically lifting the hood of the battery swapping mining truck according to the present invention can confirm in real time what state the vehicle hood is in by detecting the signals of the hood flipping and falling in place, so that the battery swapping can be carried out more safely and efficiently;

[0019] (2). The installation of the proximity travel switch, different from the contact travel switch, has higher reliability, longer service life, and stronger anti-interference ability.

[0020] (3). The application of the proximity travel switch not only makes the signal detection more accurate and reliable, but also can protect the vehicle and its components, and extend the service life of the product. Description of the Drawings:

[0021] Figure 1This is the flowchart of the control method for the automatic lifting visor of the battery-swap mining truck of the present invention. Specific embodiments:

[0022] The present invention will be further described below with reference to the accompanying drawings.

[0023] The control method for the automatic lifting visor of the battery-swap mining truck of the present invention is specifically as follows:

[0024] 1. A control method for the automatic lifting visor of a battery-swap mining truck, characterized in that the steps are as follows:

[0025] 1) Drive the vehicle to the battery swapping station and park it in place in the corresponding area;

[0026] 2) Turn the vehicle ignition switch to the ON position, shift the electronic shift lever to the N gear, and pull up the handbrake;

[0027] 3) Establish a communication connection between the battery swapping controller (hereinafter referred to as T-BOX) and the station control through Bluetooth;

[0028] 4) Press the battery swapping toggle switch to make the vehicle enter the battery swapping protection state. The vehicle control unit (hereinafter referred to as VCU) reports this state to the T-BOX. After the T-BOX feeds back this state to the station control, the station control issues a battery swapping start command to the VCU through the T-BOX;

[0029] 5) Automatically cut off the vehicle high voltage. The VCU feeds back the visor state of the vehicle to the station control through the T-BOX. The visor state is in the fully retracted position. The station control issues a command to flip the visor upward to the VCU through the T-BOX. The VCU controls the vehicle to automatically apply high voltage and engage the power take-off. After the VCU receives a valid power take-off feedback signal, it issues a simulated throttle to provide speed for the power take-off and control the lifting of the visor. After the proximity switch installed on the vehicle detects that the visor has been lifted in place, it sends a signal to the VCU. The VCU stops issuing the simulated throttle, controls the vehicle to automatically cut off the high voltage, and at the same time feeds back the visor state to the station control through the T-BOX. At this time, the visor state is in the lifted position;

[0030] 6) The VCU feeds back the visor state to the station control through the T-BOX to clarify the visor state of the vehicle. The visor state is in the lifted position. The station control issues an unlocking command to the T-BOX. The T-BOX controls the battery swapping base solenoid valve to complete the unlocking action. After the unlocking is completed, the T-BOX feeds back the battery swapping base unlocking completion state to the station control;

[0031] 7) The station control starts the battery swapping process: control the relevant lifting tools to remove the old battery box from the vehicle, and then hoist the new battery box to the vehicle battery swapping base;

[0032] 8) After the battery swapping operation is completed, after the station control issues the locking command, the T-BOX controls the solenoid valve of the battery swapping base to complete the locking action. After the locking is completed, the T-BOX sends the lock-up completion status of the battery swapping base to the station control;

[0033] 9) The VCU feeds back the visor status to the station control through the T-BOX to clarify the visor status of the vehicle. When the visor status is lifted in place, the station control issues a command to the VCU through the T-BOX to flip the visor downward. The VCU controls a series of actions such as energizing the vehicle to high voltage, engaging and disengaging the power take-off, and issuing a simulated throttle. After the proximity switch installed on the vehicle detects that the visor has fallen in place, it sends a signal to the VCU. The VCU stops issuing the simulated throttle, controls the vehicle to automatically cut off the high voltage, and at the same time feeds back the visor status to the station control through the T-BOX. At this time, the visor status is fallen in place;

[0034] 10) The VCU feeds back the visor status to the station control through the T-BOX to clarify the visor status of the vehicle. When the visor status is fallen in place, the station control determines that the battery swapping is over and issues an instruction to the VCU through the T-BOX to exit the battery swapping state and exit the battery swapping protection state;

[0035] 11) The driver resets the battery swapping toggle switch and drives the vehicle away from the station control, and the battery swapping is completed.

[0036] The control method for automatically lifting the visor of the battery swapping mining truck according to the present invention can confirm the status of the vehicle visor in real time by detecting the signals of the visor flipping and landing in place, so that the battery swapping can be carried out more safely and efficiently.

[0037] The above are only the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art, several improvements can be made without departing from the principle of the present invention, and these improvements should also be regarded as the protection scope of the present invention.

Claims

1. A control method for automatically lifting the brim of an electric-exchange mining truck, characterized in that: The steps are as follows: 1) Drive the vehicle to the battery swapping station and park it in place in the corresponding area; 2) Turn the vehicle ignition switch to the ON position, shift the electronic shift lever to the N gear, and pull up the handbrake; 3) Establish a communication connection between the battery swapping controller T-BOX and the station control via Bluetooth; 4) Press the battery swapping toggle switch to put the vehicle into the battery swapping protection state. The vehicle control unit VCU reports this state to the T-BOX. After the T-BOX feeds back this state to the station control, the station control issues a start battery swapping instruction to the VCU via the T-BOX; 5) Automatically cut off the vehicle's high voltage. The VCU feeds back the vehicle's visor state to the station control via the T-BOX. When the visor state is in place for falling back, the station control issues an instruction to flip the visor upward to the VCU via the T-BOX. The VCU controls the vehicle to automatically turn on the high voltage and engage the power take-off. After the VCU receives a valid power take-off feedback signal, it issues a simulated throttle to provide speed for the power take-off and controls the visor to lift. When the proximity switch installed on the vehicle detects that the visor has been lifted in place, it sends a signal to the VCU. The VCU stops issuing the simulated throttle, controls the vehicle to automatically cut off the high voltage, and at the same time feeds back the visor state to the station control via the T-BOX. At this time, the visor state is in place for lifting; 6) The VCU feeds back the visor state to the station control via the T-BOX to clarify the vehicle's visor state. The visor state is in place for lifting. The station control issues an unlocking instruction to the T-BOX. The T-BOX controls the solenoid valve of the battery swapping base to complete the unlocking action. After the unlocking is completed, the T-BOX feeds back the completed state of the battery swapping base unlocking to the station control; 7) The station control starts the battery swapping process: controls the relevant lifting tools to remove the old battery box from the vehicle, and then hoists the new battery box to the vehicle's battery swapping base; 8) After the battery swapping operation is completed, after the station control issues a locking instruction, the T-BOX controls the solenoid valve of the battery swapping base to complete the locking action. After the locking is completed, the T-BOX sends the completed state of the battery swapping base locking to the station control; 9) The VCU feeds back the visor state to the station control via the T-BOX to clarify the vehicle's visor state. The visor state is in place for lifting. The station control issues an instruction to flip the visor downward to the VCU via the T-BOX. The VCU controls a series of actions such as turning on the high voltage of the vehicle, engaging the power take-off, and issuing a simulated throttle. When the proximity switch installed on the vehicle detects that the visor has fallen back in place, it sends a signal to the VCU. The VCU stops issuing the simulated throttle, controls the vehicle to automatically cut off the high voltage, and at the same time feeds back the visor state to the station control via the T-BOX. At this time, the visor state is in place for falling back; 10) The VCU feeds back the visor state to the station control via the T-BOX to clarify the vehicle's visor state. The visor state is in place for falling back. The station control determines that the battery swapping is over and issues an instruction to exit the battery swapping protection state to the VCU via the T-BOX; 11) The driver resets the battery swapping toggle switch and drives the vehicle away from the station control, and the battery swapping is completed.

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