New energy automobile braking energy recovery and storage system

Abstract

The invention provides a braking energy recovery and storage system for a new energy automobile. The braking energy recovery and storage system comprises an intelligent control system, a multi-working-condition sensor group, a composite energy conversion mechanism, an intelligent energy storage unit and an interactive display terminal, the multi-working-condition sensor set comprises a brake signal sensor, a clutch signal sensor, an accelerator signal sensor, a vehicle speed signal sensor and a road condition sensor. According to the new energy automobile braking energy recovery and storage system, by adopting the combined design of the electromagnetic generator and the piezoelectric generator, the advantages of the two generators under different working conditions are fully played, and the energy recovery efficiency is greatly improved; no matter under the high-speed braking condition or the low-speed bumping condition, mechanical energy can be effectively converted into electric energy, and compared with a traditional single generator system, the energy recovery efficiency can be effectively improved.

Description

Technical Field

[0001] The present invention relates to the technical field of new energy vehicles, and particularly to a braking energy recovery and storage system for new energy vehicles. Background Art

[0002] Under the background of the global advocacy of energy conservation, emission reduction and sustainable development, the new energy vehicle industry has developed vigorously. As a key technology for new energy vehicles to improve energy utilization efficiency and extend the driving range, the braking energy recovery and storage system has become the focus of research and innovation.

[0003] The basic principle of the traditional braking energy recovery system for new energy vehicles is based on the reversibility of the motor. When the vehicle brakes, the motor changes from the driving state to the generating state. The rotation of the wheels drives the motor to operate, and mechanical energy is converted into electrical energy through electromagnetic induction. This part of the electrical energy is processed by devices such as inverters and stored in the vehicle-mounted battery. For example, during the braking process of a common pure electric vehicle, the kinetic energy of the vehicle is transmitted to the motor through the transmission system. The motor generates a reverse torque to decelerate the vehicle and at the same time generates alternating current, which is converted into direct current by the inverter and then stored in the battery. In a hybrid vehicle, the engine and the motor work together, and the motor can also recover part of the energy during braking to reduce the engine energy consumption.

[0004] However, the existing technologies have obvious limitations. First, the energy recovery efficiency is limited. Under complex actual driving conditions, the energy recovery efficiency of the existing system is poor. For example, in urban congested traffic conditions, the vehicle starts and stops frequently, the braking process is short and frequent, and the traditional system is difficult to respond quickly and recover energy efficiently. Moreover, when the vehicle brakes at high speed, the motor may exceed its efficient working range due to too high a rotational speed, resulting in a reduction in energy conversion efficiency. Second, the energy storage management is single. Most existing systems simply charge the recovered electrical energy into the battery in terms of energy storage, lacking comprehensive consideration of the battery state, the real-time power consumption demand of the vehicle, and future driving conditions. For example, when the battery power is close to saturation, forced charging continues, not only greatly reducing the charging efficiency, but also possibly damaging the battery life. At the same time, for different types of batteries (such as lead-acid batteries, lithium-ion batteries, etc.), targeted optimization management is not carried out according to their characteristics. Finally, the system coordination is insufficient. The coordination between the existing braking energy recovery and storage system and other systems of the vehicle is not close enough. During the braking process, it is impossible to accurately allocate the mechanical braking force and the electric motor braking force according to the braking demand, affecting the smoothness and safety of braking.

[0005] Therefore, it is necessary to provide a braking energy recovery and storage system for new energy vehicles to solve the above technical problems. Summary of the Invention

[0006] The present invention provides a braking energy recovery and storage system for new energy vehicles, which solves the problems of low energy recovery efficiency, single energy storage management, and insufficient system coordination in the prior art.

[0007] To solve the above technical problems, a braking energy recovery and storage system for new energy vehicles provided by the present invention includes:

[0008] An intelligent control system, a multi-condition sensor group, a composite energy conversion mechanism, an intelligent energy storage unit, and an interactive display terminal;

[0009] The multi-condition sensor group includes a brake signal sensor, a clutch signal sensor, an accelerator signal sensor, a vehicle speed signal sensor, and a road condition sensor. The output ends of the brake signal sensor, the clutch signal sensor, the accelerator signal sensor, the vehicle speed signal sensor, and the road condition sensor are respectively connected to the input end of the intelligent control system through wires, and are used for collecting the brake, clutch, accelerator, vehicle speed, and road condition information of the vehicle and transmitting it to the intelligent control system;

[0010] The intelligent control system is respectively connected to the composite energy conversion mechanism through wires. The composite energy conversion mechanism is connected to the main drive gear of the vehicle transmission. The intelligent control system judges whether the energy recovery condition is met according to the received information. If it is met, it controls the composite energy conversion mechanism to convert the mechanical energy transmitted by the transmission into electrical energy;

[0011] The output end of the composite energy conversion mechanism is connected to the intelligent energy storage unit for storing the converted electrical energy;

[0012] The intelligent control system is also connected to the interactive display terminal through wires. The interactive display terminal is used for displaying the working information of the system and receiving the operation instructions of the driver.

[0013] Preferably, the road condition sensor adopts a lidar and an image recognition device, and is used for real-time sensing of road condition information such as the road slope and curve conditions during vehicle driving.

[0014] Preferably, the composite energy conversion mechanism includes an electromagnetic generator and a piezoelectric generator. When the vehicle brakes at high speed, the electromagnetic generator works; when the vehicle is driving at low speed with bumps or under frequent start-stop conditions, the piezoelectric generator works.

[0015] Preferably, the intelligent energy storage unit includes a chemical battery and a super capacitor. An intelligent energy management module is arranged inside the intelligent energy storage unit. The intelligent energy management module automatically adjusts the charge and discharge states of the chemical battery and the super capacitor according to the energy recovery speed and the vehicle power consumption demand.

[0016] Preferably, the intelligent energy management module monitors the state information such as the power and temperature of the chemical battery and the supercapacitor in real time to ensure the safe and stable operation of the storage unit.

[0017] Preferably, the interactive display terminal has an intelligent interaction function. The driver can set the priority and mode of energy recovery through the interactive display terminal and obtain energy-saving driving suggestions.

[0018] Preferably, the intelligent control system adopts a control strategy based on artificial intelligence algorithms. According to the data collected by the multi-condition sensor group, it analyzes the vehicle driving state and working condition characteristics in real time and automatically adjusts the working modes of the composite energy conversion mechanism and the intelligent energy storage unit.

[0019] Preferably, the intelligent control system conducts information interaction with other control systems such as the vehicle's power control system and braking control system to achieve the collaborative optimization of the entire vehicle system.

[0020] Preferably, the image recognition device includes a mounting plate. A protective cover is fixedly installed on the top of the mounting plate. An installation frame is fixedly installed on the front of the protective cover. A transparent member is fixedly installed on the back of the installation frame. Slide cavities are respectively opened on both sides of the inner side of the installation frame. A driving telescopic member is fixedly installed on the inner side of the slide cavity. A baffle is fixedly installed on the moving end of the driving telescopic member. A scraping plate is fixedly installed at one end of the back of the baffle. A camera assembly is also fixedly installed on the top of the mounting plate, and the camera assembly is arranged on the inner side of the protective cover.

[0021] Preferably, one side of the scraping plate is attached to the front of the transparent member.

[0022] Compared with the related technologies, a new energy vehicle braking energy recovery and storage system provided by the present invention has the following beneficial effects:

[0023] The present invention provides a new energy vehicle braking energy recovery and storage system. By adopting a composite design combining an electromagnetic generator and a piezoelectric generator, the advantages of the two generators under different working conditions are fully exerted, and the energy recovery efficiency is greatly improved; whether it is high-speed braking or low-speed bumpy working conditions, mechanical energy can be effectively converted into electrical energy. Compared with the traditional single generator system, the energy recovery efficiency can be effectively improved;

[0024] Through the intelligent energy management module in the intelligent energy storage unit, the charge and discharge states of the chemical battery and the supercapacitor can be automatically adjusted according to the actual situation, realizing the reasonable distribution and efficient storage of energy; at the same time, the state of the storage unit is monitored in real time to ensure the safe and stable operation of the system, improve the energy utilization rate, and extend the service life of the storage unit;

[0025] The intelligent interaction function of the interactive display terminal provides a more personalized energy recovery control method for the driver, and can also provide energy-saving driving suggestions according to the driving conditions of the vehicle. The intelligent control system, based on the control strategy of artificial intelligence algorithms, can interact with other control systems of the vehicle to achieve the collaborative optimization of the entire vehicle system, further improving the performance and energy utilization efficiency of the vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a flowchart of a preferred embodiment of a new energy vehicle braking energy recovery and storage system provided by the present invention;

[0027] Figure 2 It is a schematic structural diagram of an image recognition device provided by the present invention;

[0028] Figure 3 is Figure 2 The schematic top view sectional structure diagram shown;

[0029] Figure 4 is Figure 3 The enlarged schematic view of part A shown in;

[0030] Reference numerals in the figure: 1, mounting plate; 2, protective cover; 3, mounting frame; 31, transparent member; 32, sliding cavity; 33, driving telescopic member; 34, baffle; 35, scraping plate; 4, camera assembly. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0031] The present invention will be further described below in conjunction with the drawings and embodiments.

[0032] Please refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 , wherein, Figure 1 It is a flowchart of a preferred embodiment of a new energy vehicle braking energy recovery and storage system provided by the present invention; Figure 2 It is a schematic structural diagram of an image recognition device provided by the present invention; Figure 3 is Figure 2 The schematic top view sectional structure diagram shown; Figure 4 is Figure 3 The enlarged schematic view of part A shown in. A new energy vehicle braking energy recovery and storage system includes: an intelligent control system, a multi-condition sensor group, a compound energy conversion mechanism, an intelligent energy storage unit, and an interactive display terminal;

[0033] The multi-condition sensor group includes a brake signal sensor, a clutch signal sensor, an accelerator signal sensor, a vehicle speed signal sensor, and a road condition sensor. The output ends of the brake signal sensor, the clutch signal sensor, the accelerator signal sensor, the vehicle speed signal sensor, and the road condition sensor are respectively connected to the input end of the intelligent control system through wires, and are used to collect the brake, clutch, accelerator, vehicle speed, and road condition information of the vehicle and transmit it to the intelligent control system;

[0034] The intelligent control system is respectively connected to the compound energy conversion mechanism through wires. The compound energy conversion mechanism is connected to the main drive gear of the automotive transmission. The intelligent control system judges whether the energy recovery condition is met according to the received information. If it is met, it controls the compound energy conversion mechanism to convert the mechanical energy transmitted by the transmission into electrical energy;

[0035] The output end of the compound energy conversion mechanism is connected to the intelligent energy storage unit, which is used to store the converted electrical energy;

[0036] The intelligent control system is also connected to the interactive display terminal through wires. The interactive display terminal is used to display the working information of the system and receive the operation instructions of the driver.

[0037] The road condition sensor adopts a lidar and an image recognition device, and is used to sense road condition information such as the road slope and curve conditions during vehicle driving in real time.

[0038] The compound energy conversion mechanism includes an electromagnetic generator and a piezoelectric generator. When the vehicle brakes at high speed, the electromagnetic generator works; when the vehicle is driving at low speed and bumpy or frequently starts and stops, the piezoelectric generator works.

[0039] The intelligent energy storage unit includes a chemical battery and a super capacitor. An intelligent energy management module is arranged inside the intelligent energy storage unit. The intelligent energy management module automatically adjusts the charge and discharge states of the chemical battery and the super capacitor according to the energy recovery speed and the vehicle's power consumption requirements.

[0040] The intelligent energy management module monitors the state information such as the power and temperature of the chemical battery and the super capacitor in real time to ensure the safe and stable operation of the storage unit.

[0041] The interactive display terminal has an intelligent interaction function. The driver can set the priority and mode of energy recovery through the interactive display terminal and obtain energy-saving driving suggestions.

[0042] The intelligent control system adopts a control strategy based on artificial intelligence algorithms. According to the data collected by the multi-condition sensor group, it analyzes the vehicle driving state and working condition characteristics in real time, and automatically adjusts the working modes of the composite energy conversion mechanism and the intelligent energy storage unit.

[0043] The intelligent control system interacts with other control systems such as the vehicle's power control system and braking control system to achieve collaborative optimization of the entire vehicle system.

[0044] The image recognition device includes a mounting plate 1. A protective cover 2 is fixedly installed at the top of the mounting plate 1. An installation frame 3 is fixedly installed on the front of the protective cover 2. A transparent member 31 is fixedly installed on the back of the installation frame 3. Slide cavities 32 are opened on both sides of the inner side surface of the installation frame 3. A driving telescopic member 33 is fixedly installed on the inner side surface of the slide cavity 32. A baffle 34 is fixedly installed at the mobile end of the driving telescopic member 33. A scraping plate 35 is fixedly installed at one end of the back of the baffle 34. A camera assembly 4 is also fixedly installed at the top of the mounting plate 1. The camera assembly 4 is arranged on the inner side surface of the protective cover 2.

[0045] One side of the scraping plate 35 is attached to the front of the transparent member 31.

[0046] During vehicle driving, if dirt such as dust and rain adheres to the transparent member 31 and affects the shooting effect of the camera assembly 4, the intelligent control system can control the driving telescopic member 33 to start according to the actual situation or a preset program. The driving telescopic member 33 pushes the baffle 34 to move in the slide cavity 32. The baffle 34 drives the scraping plate 35 to slide on the front of the transparent member 31, thereby removing the dirt, ensuring that the camera assembly 4 can clearly shoot the road image, ensuring accurate collection of road condition information, and providing reliable data support for the intelligent control system.

[0047] When the vehicle stops, the two baffles 34 can be moved to the front of the transparent member 31, thereby playing a role in shielding the transparent member 31 and preventing the transparent member 31 from being impacted by external objects and damaged.

[0048] The working principle of a new energy vehicle braking energy recovery and storage system provided by the present invention is as follows:

[0049] During vehicle driving, the multi-condition sensor group continuously collects the vehicle's braking, clutch, throttle, vehicle speed, and road condition information, and transmits this information to the intelligent control system. The intelligent control system uses a control strategy based on artificial intelligence algorithms to analyze the vehicle driving state and working condition characteristics in real time according to the received data.

[0050] When it is determined that the vehicle is in a braking state and meets the energy recovery conditions, the intelligent control system controls the operation of the composite energy conversion mechanism according to the vehicle speed and working conditions. If the vehicle is in a high-speed braking state, the intelligent control system starts the electromagnetic generator to efficiently convert the mechanical energy transmitted by the gearbox into electrical energy; if the vehicle is in a low-speed bumpy or frequent start-stop working condition, the piezoelectric generator is started for energy conversion;

[0051] The converted electrical energy is transmitted to the intelligent energy storage unit. The intelligent energy management module automatically adjusts the charge and discharge states of the chemical battery and the supercapacitor according to the energy recovery speed and the vehicle's power consumption requirements. When the energy recovery speed is relatively fast, the supercapacitor is given priority to store electrical energy. After it approaches saturation, the excess energy is transferred to the chemical battery; when the vehicle needs to use electricity, such as in the scenarios of acceleration or other high-power electricity consumption, the supercapacitor releases electrical energy first. If the power is insufficient, the chemical battery supplies power to supplement. At the same time, the intelligent energy management module real-time monitors the state information such as the power and temperature of the chemical battery and the supercapacitor to ensure the safe and stable operation of the storage unit;

[0052] The interactive display terminal real-time displays the working information of the system, including the energy recovery state, battery power, system working parameters, etc. The driver can set the priority and mode of energy recovery through the interactive display terminal, such as setting to preferentially store energy in the chemical battery before a long-distance drive, and setting to preferentially use the supercapacitor for energy recovery and release in urban congested road conditions; in addition, the interactive display terminal will also provide energy-saving driving suggestions for the driver according to the vehicle's driving history and real-time road conditions to help the driver make better use of the energy recovery system;

[0053] The intelligent control system also conducts information interaction with other control systems of the vehicle, such as the power control system and the braking control system. During braking, the intelligent control system accurately distributes the mechanical braking force and the electric motor braking force according to the driver's braking intention and the vehicle driving state to ensure the smoothness and safety of braking; during acceleration, the intelligent control system coordinates the power control system to reasonably use the recovered electrical energy to assist in driving, improve the power output efficiency, and reduce energy consumption.

[0054] Compared with the related technologies, a new energy vehicle braking energy recovery and storage system provided by the present invention has the following beneficial effects:

[0055] By adopting a composite design combining an electromagnetic generator and a piezoelectric generator, the advantages of the two generators under different working conditions are fully utilized, greatly improving the energy recovery efficiency; whether it is high-speed braking or low-speed bumpy working conditions, the mechanical energy can be effectively converted into electrical energy. Compared with the traditional single-generator system, the energy recovery efficiency can be effectively improved;

[0056] The intelligent energy management module in the intelligent energy storage unit can automatically adjust the charge and discharge states of the chemical battery and the supercapacitor according to the actual situation, realizing the reasonable distribution and efficient storage of energy; at the same time, it monitors the state of the storage unit in real time to ensure the safe and stable operation of the system, improving the energy utilization rate and extending the service life of the storage unit;

[0057] The intelligent interaction function of the interactive display terminal provides a more personalized energy recovery control method for the driver, and at the same time can provide energy-saving driving suggestions according to the driving conditions of the vehicle. The intelligent control system, based on the control strategy of artificial intelligence algorithms, can interact with other control systems of the vehicle to achieve the collaborative optimization of the entire vehicle system, further improving the performance and energy utilization efficiency of the vehicle.

[0058] The above are only the embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of the present invention, or directly or indirectly applied to other related technical fields, shall be similarly included in the patent protection scope of the present invention.

Claims

1. A new energy vehicle braking energy recovery storage system, characterized in that: include: Intelligent control system, multi-operating condition sensor group, composite energy conversion mechanism, intelligent energy storage unit and interactive display terminal; The multi-operating condition sensor group includes a brake signal sensor, a clutch signal sensor, a throttle signal sensor, a vehicle speed signal sensor and a road condition sensor. The output ends of the brake signal sensor, the clutch signal sensor, the throttle signal sensor, the vehicle speed signal sensor and the road condition sensor are respectively connected to the input end of the intelligent control system through wires, so as to collect the brake, clutch, throttle, vehicle speed and road condition information of the vehicle and transmit them to the intelligent control system; The intelligent control system is connected to the composite energy conversion mechanism through wires, and the composite energy conversion mechanism is connected to the main drive gear of the automobile gearbox. The intelligent control system determines whether the energy recovery condition is met according to the received information, and if so, controls the composite energy conversion mechanism to convert the mechanical energy transmitted by the gearbox into electrical energy; The output end of the composite energy conversion mechanism is connected to the intelligent energy storage unit for storing the converted electrical energy; The intelligent control system is also connected to the interactive display terminal through a wire, and the interactive display terminal is used to display the working information of the system and receive the operation instructions of the driver.

2. A new energy vehicle braking energy recovery storage system according to claim 1, characterized in that: The road condition sensor uses a laser radar and an image recognition device to sense road condition information such as the slope of the road the vehicle is traveling on, the condition of the curve, etc. in real time.

3. The new energy vehicle braking energy recovery storage system according to claim 1 is characterized in that: The composite energy conversion mechanism comprises an electromagnetic generator and a piezoelectric generator. When the vehicle is braked at high speed, the electromagnetic generator works; when the vehicle is bumpy at low speed or under frequent start-stop conditions, the piezoelectric generator works.

4. The new energy vehicle braking energy recovery storage system according to claim 1 is characterized in that: The intelligent energy storage unit includes a chemical battery and a supercapacitor. An intelligent energy management module is arranged inside the intelligent energy storage unit. The intelligent energy management module automatically adjusts the charge and discharge state of the chemical battery and the supercapacitor according to the energy recovery speed and the vehicle power demand.

5. A new energy vehicle braking energy recovery storage system according to claim 4, characterized in that: The intelligent energy management module monitors the state information of the chemical battery and supercapacitor, such as the power and temperature, in real time to ensure the safe and stable operation of the storage unit.

6. The new energy vehicle braking energy recovery storage system according to claim 1 is characterized in that: The interactive display terminal has an intelligent interactive function, and the driver can use the interactive display terminal to set the priority and mode of energy recovery and obtain energy-saving driving suggestions.

7. The new energy vehicle braking energy recovery storage system according to claim 1 is characterized in that: The intelligent control system adopts a control strategy based on an artificial intelligence algorithm, analyzes the vehicle driving status and operating characteristics in real time according to the data collected by the multi-operating condition sensor group, and automatically adjusts the working mode of the composite energy conversion mechanism and the intelligent energy storage unit.

8. The new energy vehicle braking energy recovery storage system according to claim 1 is characterized in that: The intelligent control system exchanges information with other control systems of the vehicle, such as the power control system and the braking control system, to achieve coordinated optimization of the entire vehicle system.

9. The new energy vehicle braking energy recovery storage system according to claim 2 is characterized in that: The image recognition device includes a mounting plate, a protective cover is fixedly mounted on the top of the mounting plate, a mounting frame is fixedly mounted on the front of the protective cover, a transparent part is fixedly mounted on the back of the mounting frame, sliding cavities are opened on both sides of the inner side of the mounting frame, a driving telescopic part is fixedly mounted on the inner side of the sliding cavity, a baffle is fixedly mounted on the movable end of the driving telescopic part, a scraper is fixedly mounted on one end of the back of the baffle, and a camera assembly is also fixedly mounted on the top of the mounting plate, and the camera assembly is arranged on the inner side of the protective cover.

10. A new energy vehicle braking energy recovery storage system according to claim 9, characterized in that: One side of the scraper is attached to the front side of the transparent member.

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