Kinetic energy recovery system of aircraft rodless tractor chassis vector drive-by-wire system

Abstract

The invention relates to the technical field of aircraft tractors, in particular to a kinetic energy recovery system of an aircraft rodless tractor chassis vector drive-by-wire system. According to the system, an MPPT circuit is used, kinetic energy is converted into electric energy through the MPPT circuit during braking, voltage and current are optimized to achieve maximum power point tracking, and kinetic energy recovery is completed. The system comprises an energy acquisition module, an MPPT control module, an energy storage module and an energy utilization module.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of aircraft towing vehicles, in particular to a kinetic energy recovery system of a chassis vector linear control system of an aircraft towing vehicle. BACKGROUND

[0002] An aircraft towing vehicle is a support equipment for towing aircraft on the ground of an airport. The movement of the aircraft needs to be completed by special towing equipment when the aircraft is in production and manufacturing, maintenance and engine shutdown. An electric vehicle is an environmentally friendly and efficient transportation tool and is widely used on a poleless towing vehicle. However, the poleless towing vehicle is not equipped with a high-efficiency kinetic energy recovery system, so that the energy utilization efficiency has a large space for improvement. SUMMARY

[0003] To solve the above problems, the application provides a kinetic energy recovery system of a chassis vector linear control system of an aircraft poleless towing vehicle. The system uses an MPPT circuit to convert kinetic energy into electrical energy during braking, and optimizes voltage and current to realize maximum power point tracking, and completes kinetic energy recovery. The system comprises an energy collection module, an MPPT control module, an energy storage module and an energy utilization module.

[0004] The energy collection module converts the kinetic energy of the vehicle into electrical energy through the motor generator or motor during braking. During the driving process of the electric vehicle, the kinetic energy recovery system monitors the braking condition of the vehicle. When the driver steps on the brake pedal, the rotational kinetic energy of the wheels will cause the motor generator or motor to generate current. This current can be optimized and adjusted through the MPPT (Maximum PowerPoint Tracking) circuit to ensure that the motor generator or motor always operates near the maximum power point. The MPPT circuit will adjust the working state of the motor generator or motor through appropriate control algorithms according to the monitored voltage and current conditions, so that it operates in a state of maximum output power to optimize the energy collection efficiency.

[0005] The MPPT circuit composition module comprises a sensor module, an MPPT controller, a motor generator or motor, a battery pack and a Boost circuit DC / DC converter. The sensor module monitors the current, voltage and other related parameters of the motor generator or motor and transmits the data to the MPPT controller. The MPPT controller is the core component, which executes the maximum power point tracking algorithm to optimize the working state of the motor generator or motor to maximize the energy capture. The optimized electrical energy is stored in the battery pack for subsequent use. The Boost circuit DC / DC converter ensures that the voltage output by the motor generator or motor matches the battery pack voltage to efficiently transfer energy. Such an MPPT circuit composition module works cooperatively to improve the energy utilization efficiency and cruising range of the kinetic energy recovery system.

[0006] The energy storage module will store the optimized electrical energy by MPPT. The energy storage module consists of: battery pack: composed of multiple lithium-ion battery cells in series to achieve the required voltage and capacity. Battery management system (BMS): to ensure the normal operation and safety of the battery pack. BMS will monitor the voltage and temperature of each battery cell, ensure that the working state of all cells is within a reasonable range, and prevent overcharging, overdischarging, and overtemperature. When the kinetic energy recovery system stores electrical energy into the battery pack, the charge controller is responsible for controlling the current and voltage to ensure safe and efficient charging.

[0007] The energy utilization module converts the electrical energy stored in the battery into energy that can be used by the electric vehicle power system. It includes: inverter, controller, AC circuit, electric vehicle power system, control algorithm. The design and optimization of the energy utilization module aims to achieve efficient energy conversion and power output. Through the precise control of the inverter and controller, the energy utilization module can effectively convert the electrical energy stored in the battery into the power required to drive the electric vehicle, thereby improving energy use efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0008] Figure 1 is the principle diagram of the aircraft rodless towing vehicle wheel holding system of the present application; DETAILED DESCRIPTION

[0009] The technical solutions of the present application are further described below, but the scope of protection is not limited to the description.

[0010] Example one:

[0011] As Figure 1 shown, the system uses an MPPT circuit to convert kinetic energy into electrical energy during braking, and optimizes the voltage and current to achieve maximum power point tracking, completing kinetic energy recovery. The system includes an energy collection module, an MPPT control module, an energy storage module, and an energy utilization module.

[0012] The technical solutions are as follows:

[0013] The energy harvesting module converts the kinetic energy of the vehicle into electrical energy through an electric generator or motor during braking. During the driving process of an electric vehicle, the kinetic energy recovery system monitors the braking situation of the vehicle. When the driver steps on the brake pedal, the rotational kinetic energy of the wheels will cause the electric generator or motor to generate an electric current. This current can be optimized and regulated by the MPPT (Maximum PowerPoint Tracking) circuit to ensure that the electric generator or motor always operates near the maximum power point. The MPPT circuit will adjust the working state of the electric generator or motor through appropriate control algorithms according to the monitored voltage and current, so that it operates in a state of maximum output power. In this way, the efficiency of energy harvesting is optimized, and more kinetic energy can be effectively converted into electrical energy. The electrical energy optimized by the MPPT circuit is then sent to the battery pack of the electric vehicle for storage. After the battery is charged, these energies are saved for subsequent use. When the electric vehicle needs to accelerate or drive, the energy stored in the battery can be used to power the electric motor, thereby reducing the pressure of direct battery power supply and saving energy consumption. The energy harvesting method of the kinetic energy recovery system relies on the conversion of kinetic energy into electrical energy by the electric generator or motor during braking, and optimizes the electrical energy through the MPPT circuit, and finally stores it in the battery to improve energy utilization efficiency and range.

[0014] The MPPT circuit composition module includes a sensor module, an MPPT controller, an electric generator or motor, a battery pack, and a Boost circuit DC / DC converter. The sensor module monitors the current, voltage and other related parameters of the electric generator or motor, and transmits data to the MPPT controller. The MPPT controller is the core component, which executes the maximum power point tracking algorithm to optimize the working state of the electric generator or motor to maximize energy capture. The optimized electrical energy is stored in the battery pack for subsequent use. The Boost circuit DC / DC converter ensures that the voltage output by the electric generator or motor matches the battery pack voltage for efficient energy transmission. Such an MPPT circuit composition module works together to improve the energy utilization efficiency and range of the kinetic energy recovery system.

[0015] The energy storage module is used to store the optimized electrical energy by MPPT for subsequent use. The composition of the energy storage module usually includes the following components: battery pack, which is composed of multiple battery cells, which can be lithium-ion batteries, nickel-hydrogen batteries, lead-acid batteries, and these battery cells are connected in series to form a battery pack to achieve the required voltage and capacity. Battery management system (BMS), which is the key to ensuring the normal operation and safety of the battery pack. It includes the monitoring and balancing functions of the battery. The BMS monitors the voltage and temperature of each battery cell to ensure that the working state of all cells is within a reasonable range and prevents overcharging, over-discharging, and over-temperature. In addition, the BMS can also perform equalization charging and discharging of the battery cells to ensure that the charge state of each cell in the battery pack remains consistent and prolongs the battery life. Battery protection device: This is a safety device designed to ensure the safety of the battery pack in extreme situations. It can include overcurrent protection, over-temperature protection, short-circuit protection, and other functions to prevent the battery pack from causing excessive current or temperature due to abnormal conditions, thereby protecting the health of the battery and prolonging its service life. Charge and discharge controller: The charge and discharge controller is a device that controls the input and output of energy. When the kinetic energy recovery system stores electrical energy into the battery pack, the charge controller is responsible for controlling the current and voltage to ensure safe and efficient charging. When electrical energy is needed, the discharge controller is responsible for controlling the current and voltage to meet the system's needs. The composition of the energy storage module can vary depending on different application requirements and specifications of electric vehicles. Considering factors such as energy storage efficiency, safety, and cost, manufacturers will carefully design the energy storage module to ensure the performance and stability of the kinetic energy recovery system.

[0016] The energy utilization module converts the electrical energy stored in the battery into energy that can be used by the electric vehicle power system. The composition of the energy utilization module usually includes the following elements: Inverter: The inverter is the core equipment of the energy utilization module, which converts the direct current (DC) electrical energy stored in the battery into alternating current (AC) electrical energy to supply the electric motor and other electrical equipment of the electric vehicle. Alternating current power is the standard input power of the electric vehicle power system. Controller: The energy utilization module is usually equipped with a controller to monitor parameters such as the state of charge of the battery pack, output current and voltage. The controller adjusts the output of the inverter according to the demand of the electric vehicle and the state of the system to achieve efficient use and reasonable distribution of energy. AC circuit: The output of the inverter is transmitted to the power system of the electric vehicle through the AC circuit. The AC circuit may include electrical connection lines, circuit breakers, fuses and other components to ensure the safe transmission and distribution of electrical energy. Electric vehicle power system: The energy utilization module provides converted alternating current power to the electric motor and other related electrical equipment of the electric vehicle to drive the vehicle to travel. The electric vehicle power system may include the electric motor, controller, drive system and other parts. Control algorithm: The control algorithm of the energy utilization module plays a crucial role. The control algorithm adjusts the output of the inverter in real time according to the state of the electric vehicle and the driving demand to ensure efficient use of energy and stable operation of the power system. The design and optimization of the energy utilization module aim to achieve efficient energy conversion and power output. Through the precise control of the inverter and the controller, the energy utilization module can effectively convert the electrical energy stored in the battery into the power required to drive the electric vehicle, thereby improving energy utilization efficiency and range.

Claims

1. A kinetic energy recovery system of an aircraft rodless tractor chassis vector linear system, the aircraft rodless tractor chassis vector linear system kinetic energy recovery system is applied to an aircraft rodless tractor, when braking, the system converts kinetic energy into electrical energy through an MPPT circuit, and optimizes voltage and current to achieve maximum power point tracking, and completes kinetic energy recovery. The characteristics include: The system includes an energy harvesting module, an MPPT control module, an energy storage module, and an energy utilization module.

2. The kinetic energy recovery system of the aircraft, rod- less tractor chassis vector linear system of claim 1, wherein: The energy harvesting module converts the kinetic energy of the vehicle into electrical energy through an electric generator or motor during braking. During the driving process of an electric vehicle, the kinetic energy recovery system monitors the braking situation of the vehicle. When the driver steps on the brake pedal, the rotational kinetic energy of the wheels will cause the electric generator or motor to generate current. This current can be optimized and regulated by the MPPT (Maximum PowerPoint Tracking) circuit to ensure that the electric generator or motor always operates near the maximum power point. The MPPT circuit will adjust the working state of the electric generator or motor through appropriate control algorithms based on the monitored voltage and current to optimize the energy harvesting efficiency.

3. The kinetic energy recovery system of claim 1, wherein: The MPPT circuit module includes a sensor module, an MPPT controller, an electric generator or motor, a battery pack, and a Boost circuit DC / DC converter. The sensor module monitors the current, voltage, and other related parameters of the electric generator or motor and transmits data to the MPPT controller. The MPPT controller is the core component that executes the maximum power point tracking algorithm to optimize the working state of the electric generator or motor to maximize energy capture. The optimized electrical energy is stored in the battery pack for subsequent use. The Boost circuit DC / DC converter ensures that the voltage output by the electric generator or motor matches the battery pack voltage for efficient energy transmission. Such an MPPT circuit module works together to improve the energy utilization efficiency and range of the kinetic energy recovery system.

4. The kinetic energy recovery system of claim 1, wherein: The energy storage module will store the MPPT-optimized electrical energy. The energy storage module is composed of: a battery pack: composed of multiple lithium-ion battery cells connected in series to achieve the required voltage and capacity. Battery Management System (BMS): used to ensure the normal operation and safety of the battery pack. The BMS monitors the voltage and temperature of each battery cell to ensure that the working state of all cells is within a reasonable range and prevents overcharging, over-discharging, and over-temperature. When the kinetic energy recovery system stores electrical energy in the battery pack, the charge controller is responsible for controlling the current and voltage.

5. The kinetic energy recovery system of claim 1, wherein: The energy utilization module converts the electrical energy stored in the battery into energy that can be used by the electric vehicle power system. It includes an inverter, a controller, an AC circuit, an electric vehicle power system, and a control algorithm. The design and optimization of the energy utilization module aim to achieve efficient energy conversion and power output. Through precise control of the inverter and controller, the energy utilization module can effectively convert the electrical energy stored in the battery into the power required to drive the electric vehicle.

Images