Driving control protection system and method mounted on electric compression garbage truck

Abstract

The invention relates to an electric compression garbage truck loading drive control protection system and method, and the method comprises the steps that a loading controller BBM sends a power takeoff rotating speed control instruction to a vehicle control unit VCU through a CAN bus, and the vehicle control unit VCU carries out the vehicle state judgment after receiving the power takeoff rotating speed control instruction; the vehicle control unit VCU converts a power takeoff rotating speed control instruction into a motor rotating speed control instruction when confirming that the vehicle state is safe and sends the motor rotating speed control instruction to the motor controller MCU, the motor controller MCU receives the motor rotating speed control instruction and then controls the rotating speed of a motor, and the loading execution component receives the power takeoff rotating speed instruction and executes loading action; according to the invention, the safety of the loading operation of the electric compression type garbage truck and the operation convenience of a driver are ensured at the same time in the control aspect of the loading driving system of the electric compression type garbage truck, and a necessary emergency scheme is provided when the control fails.

Description

Technical Field

[0001] The present invention relates to the technical field of new energy vehicles, and in particular to a drive control protection system and method for an electric compression garbage truck. Background Art

[0002] In recent years, special vehicles have gradually transformed to new energy sources, and sanitation vehicles, as urban vehicles, have made a particularly significant transformation. Traditional diesel compression garbage trucks mainly use hard-wired connections to control the speed of the power take-off using remote throttle or remote engine speed control, and then adjust the speed of the power take-off in real time. However, electric sanitation vehicles currently mainly use buses to transmit control signals, and there are also significant differences in the control methods of motor speed and engine speed.

[0003] Therefore, various manufacturers have conducted research on the upper drive system of electric compression garbage trucks. In the control of the upper drive system of electric compression garbage trucks, it is necessary to consider the convenience and accuracy of the upper drive control, as well as the safety of vehicle operation and the contingency plan for situations such as vehicle signal loss, etc., to ensure the safety of vehicle operation, the convenience of driver operation and provide necessary emergency plans when control fails. Summary of the invention

[0004] In order to solve the above problems, the present invention provides an electric compression garbage truck upper load drive control protection system and method, which ensures the safety of the electric compression garbage truck upper load operation and the convenience of the driver's operation in terms of the control of the electric compression garbage truck upper load drive system, and provides necessary emergency plans when the control fails, to ensure that the vehicle can still complete temporary garbage collection work when the upper load signal is lost.

[0005] The solution adopted by the present invention to solve the technical problem is:

[0006] An electric compression garbage truck upper drive control and protection system includes an upper controller BBM, a vehicle controller VCU, a motor controller MCU, a vehicle power system, and an upper actuator; the vehicle power system includes a motor and a power take-off;

[0007] The bodywork controller BBM sends the power take-off speed control instruction to the vehicle controller VCU through the CAN bus. The vehicle controller VCU determines the vehicle state after receiving the power take-off speed control instruction. When confirming that the vehicle state is safe, the vehicle controller VCU converts the power take-off speed control instruction into a motor speed control instruction, and sends the motor speed control instruction to the motor controller MCU. The motor controller MCU controls the motor speed after receiving the motor speed control instruction. The motor is connected to the power take-off, and the power take-off is connected to the bodywork actuator. The bodywork actuator receives the power take-off speed instruction and executes the bodywork action.

[0008] As a further description of the invention, the vehicle power system also includes a transmission and a superstructure power shaft; the motor is connected to the transmission, the transmission is connected to a power take-off, and the power take-off is connected to a superstructure actuator via a superstructure power shaft.

[0009] As a further description of the invention, it also includes an accelerator pedal; the accelerator pedal is connected to the motor and is used to provide emergency speed driving force to the power take-off.

[0010] A method for controlling and protecting the upper body of an electric compression garbage truck comprises any of the above-mentioned upper body driving control and protection systems of the electric compression garbage truck, and the method comprises the following steps:

[0011] Step 101: According to the driver's control intention, the bodywork controller BBM sends a power take-off speed control instruction to the vehicle controller VCU;

[0012] Step 102: the vehicle controller VCU determines the vehicle state after receiving the power take-off speed control command; if the vehicle state is determined to be safe, the process jumps to step 103;

[0013] Step 103: The vehicle controller VCU converts the power take-off speed control instruction into a motor speed control instruction, and sends the motor speed control instruction to the motor controller MCU;

[0014] Step 104: the motor controller MCU controls the motor speed after receiving the motor speed control instruction, the motor controls the power take-off speed, and the upper installation execution component receives the power take-off speed instruction and executes the upper installation action.

[0015] As a further explanation of the invention, the vehicle controller VCU receives signals transmitted by various sensors of the vehicle. When determining the vehicle status, the vehicle controller VCU confirms whether the vehicle has been started through the motor start signal after the high voltage is normally powered on; the vehicle controller VCU confirms whether the transmission is in neutral through the transmission gear signal; the vehicle controller VCU confirms whether the vehicle is in parking state through the parking signal; the vehicle controller VCU confirms whether the power take-off is turned on through the power take-off switch signal; the vehicle controller VCU confirms whether the brake pedal signal is suspended through the pedal signal;

[0016] When the vehicle controller VCU receives a vehicle start signal, a transmission neutral state signal, a vehicle power take-off switch turned on signal, a vehicle parking state signal, and a brake pedal suspended state signal; if all five of the above signals are met, the vehicle state is determined to be safe.

[0017] As a further explanation of the invention, when one or several items of the signals received by the vehicle controller VCU cannot be met, the vehicle status is determined to be abnormal, and the vehicle controller VCU performs an audible and visual alarm to prompt the driver to perform vehicle status operations. If all five items of the signals received by the vehicle controller VCU are met, the process jumps to step 103 to continue execution.

[0018] As a further explanation of the invention, if the speed signal is abnormally lost during the transmission process, the driver can control the power take-off speed through the accelerator pedal. After the accelerator pedal is pressed, the power take-off operates at an emergency speed and the vehicle can still perform temporary loading work.

[0019] The beneficial effects of the present invention are as follows: in terms of the control of the upper drive system of the electric compression garbage truck, the safety of the upper loading operation of the electric compression garbage truck and the convenience of the driver's operation are ensured, and necessary emergency plans are provided when the control fails, ensuring that the vehicle can still complete temporary garbage collection work when the upper loading signal is lost. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the principle of the upper drive control protection system and method of the electric compression garbage truck provided by the present invention. DETAILED DESCRIPTION

[0021] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0022] See also Figure 1 The present invention provides a technical solution: a driving control and protection system for an electric compression garbage truck, including a body controller BBM, a vehicle controller VCU, a motor controller MCU, a vehicle power system, and a body execution component; the vehicle power system includes a motor and a power take-off;

[0023] The driver can control the speed of the power take-off of the electric compression garbage truck according to the driving intention. The upper-mounted controller BBM sends the speed control message signal to the vehicle controller VCU through the CAN bus. The vehicle controller VCU determines the vehicle status after receiving the power take-off speed control instruction. When confirming that the vehicle status is safe, the vehicle controller VCU converts the power take-off speed control instruction into a motor speed control instruction, and sends the motor speed control instruction to the motor controller MCU. After receiving the motor speed control instruction, the motor controller MCU controls the motor speed. The motor is connected to the power take-off, and the power take-off is connected to the upper-mounted actuator. The upper-mounted actuator receives the power take-off speed instruction and executes the upper-mounted action.

[0024] Among them, the body controller BBM is used to realize the driver's body operation intention and send and receive body messages; the vehicle controller VCU is used to transmit, receive and convert information with various vehicle controllers; the motor controller MCU is used to transmit signals with the vehicle controller VCU and adjust the motor speed; the vehicle power system outputs power after receiving the instructions of the motor controller MCU;

[0025] The upper part execution part is used to execute the upper part operation

[0026] The vehicle power system also includes a transmission and a mounted power shaft; the motor is connected to the transmission, the power take-off is installed on the transmission, and the power take-off is connected to the mounted actuator via the mounted power shaft; the mounted transmission shaft is used to connect the power take-off and the mounted actuator; the mounted actuator is used to perform mounted operations.

[0027] It also includes an accelerator pedal; the accelerator pedal controls the motor, and the motor power is transmitted to the power take-off through the transmission to provide emergency speed driving force to the power take-off.

[0028] See also Figure 1 The present invention also provides a method for controlling and protecting the upper drive of an electric compression garbage truck, the method comprising the following steps:

[0029] Step 101: According to the driver's control intention, the bodywork controller BBM sends a power take-off speed control instruction to the vehicle controller VCU;

[0030] Step 102: The vehicle controller VCU determines the vehicle state after receiving the power take-off speed control command; if the vehicle state is determined to be safe, the process jumps to step 103;

[0031] Step 103: The vehicle controller VCU converts the power take-off speed control instruction into a motor speed control instruction, and sends the motor speed control instruction to the motor controller MCU;

[0032] Step 104: the motor controller MCU controls the motor speed after receiving the motor speed control command, the motor controls the power take-off speed, and the upper installation execution component receives the power take-off speed command and executes the upper installation action.

[0033] When determining the vehicle status, the vehicle controller VCU receives signals from various vehicle sensors:

[0034] The vehicle controller VCU confirms whether the vehicle has started through the motor start signal after the high voltage is normally powered on, ensuring that the vehicle currently has the working conditions in terms of power requirements;

[0035] The vehicle controller VCU confirms whether the transmission is in neutral through the transmission gear position signal; it ensures that the vehicle will not jump forward or backward when the motor is running, which may cause safety accidents to garbage collectors and surrounding personnel and facilities;

[0036] The vehicle controller VCU confirms whether the vehicle is parked through the parking signal; even if the ground is at a certain angle, the vehicle will not slide or jump;

[0037] The vehicle controller VCU confirms whether the power take-off is turned on through the power take-off switch signal; confirms that the power take-off can work normally after power input;

[0038] The vehicle controller VCU confirms whether the brake pedal signal is suspended through the pedal signal, ensuring that the vehicle power can be output normally;

[0039] When the vehicle controller VCU receives a vehicle start signal, a transmission neutral state signal, a vehicle power take-off switch on signal, a vehicle parking state signal, and a brake pedal suspended state signal; if all five of the above five signals are satisfied, the vehicle state is determined to be safe, and then jumps to step 103, and then controls the power take-off speed to meet the upper drive requirements of the electric compression garbage truck;

[0040] When one or more of the signals received by the vehicle controller VCU cannot be met, the vehicle status is determined to be abnormal, and the vehicle controller VCU issues an audible and visual alarm, which includes a fault signal, a sound signal, or an indicator light signal, etc., to prompt the driver to perform vehicle status operations; if all five items of the signals received by the vehicle controller VCU are met, jump to step 103 to continue execution.

[0041] If the above speed signal is abnormally lost during the transmission process, the driver can control the speed of the power take-off through the accelerator pedal. After the accelerator pedal is pressed, the power take-off will operate at 1000r / min or other set emergency speed to ensure that the vehicle can still complete temporary garbage collection work when the upper signal is lost, and ensure that the vehicle can drive to the service station for troubleshooting and repair after completing the existing work.

[0042] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the attached claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0043] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A drive control and protection system for an electric compression garbage truck, characterized in that: It includes a body controller BBM, a vehicle controller VCU, a motor controller MCU, a vehicle power system, and a body execution component; the vehicle power system includes a motor and a power take-off; The bodywork controller BBM sends the power take-off speed control instruction to the vehicle controller VCU through the CAN bus. The vehicle controller VCU determines the vehicle state after receiving the power take-off speed control instruction. When confirming that the vehicle state is safe, the vehicle controller VCU converts the power take-off speed control instruction into a motor speed control instruction, and sends the motor speed control instruction to the motor controller MCU. The motor controller MCU controls the motor speed after receiving the motor speed control instruction. The motor is connected to the power take-off, and the power take-off is connected to the bodywork actuator. The bodywork actuator receives the power take-off speed instruction and executes the bodywork action.

2. The electric compression garbage truck upper body drive control protection system as claimed in claim 1, characterized in that: The vehicle power system also includes a transmission and a body power shaft; the motor is connected to the transmission, the transmission is connected to a power take-off, and the power take-off is connected to a body actuator via a body power shaft.

3. The electric compression garbage truck upper body drive control protection system as claimed in claim 2, characterized in that: It also includes an accelerator pedal; the accelerator pedal is connected to the motor and is used to provide emergency speed driving force to the power take-off.

4. A method for controlling and protecting the upper drive of an electric compression garbage truck, characterized in that: The method comprises the drive control protection system for an electric compression garbage truck as claimed in any one of claims 1 to 3, and the method comprises the following steps: Step 101: According to the driver's control intention, the bodywork controller BBM sends a power take-off speed control instruction to the vehicle controller VCU; Step 102: the vehicle controller VCU determines the vehicle state after receiving the power take-off speed control command; if the vehicle state is determined to be safe, the process jumps to step 103; Step 103: The vehicle controller VCU converts the power take-off speed control instruction into a motor speed control instruction, and sends the motor speed control instruction to the motor controller MCU; Step 104: the motor controller MCU controls the motor speed after receiving the motor speed control instruction, the motor controls the power take-off speed, and the upper installation execution component receives the power take-off speed instruction and executes the upper installation action.

5. The method for controlling and protecting the upper body of an electric compression garbage truck as claimed in claim 4, characterized in that: The vehicle controller VCU receives signals transmitted by various sensors of the vehicle. When determining the vehicle status, the vehicle controller VCU confirms whether the vehicle has been started through the motor start signal after the high voltage is normally powered on; the vehicle controller VCU confirms whether the transmission is in neutral through the transmission gear signal; the vehicle controller VCU confirms whether the vehicle is in parking state through the parking signal; the vehicle controller VCU confirms whether the power take-off is turned on through the power take-off switch signal; the vehicle controller VCU confirms whether the brake pedal signal is suspended through the pedal signal; When the vehicle controller VCU receives a vehicle start signal, a transmission neutral state signal, a vehicle power take-off switch turned on signal, a vehicle parking state signal, and a brake pedal suspended state signal; if all five of the above signals are met, the vehicle state is determined to be safe.

6. The method for controlling and protecting the upper body of an electric compression garbage truck as claimed in claim 5, characterized in that: When one or more of the signals received by the vehicle controller VCU cannot be met, the vehicle status is determined to be abnormal, and the vehicle controller VCU issues an audible and visual alarm to prompt the driver to perform vehicle status operations. If all five signals received by the vehicle controller VCU are met, the process jumps to step 103 to continue execution.

7. The method for controlling and protecting the upper body of an electric compression garbage truck as claimed in claim 6, characterized in that: If the speed signal is abnormally lost during the transmission process, the driver can control the speed of the power take-off through the accelerator pedal. After the accelerator pedal is pressed, the power take-off works at the emergency speed and the vehicle can still perform temporary loading work.

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