Emergency braking system of vehicle, emergency braking method and vehicle

Abstract

The invention provides an emergency braking system and method of a vehicle and the vehicle. The emergency braking system includes an input module configured to receive an emergency braking request from a user and generate an input signal; the control module comprises a vehicle control unit, and the vehicle control unit is configured to generate an emergency braking instruction based on the input signal; a processing module including a battery management system configured to generate a power-off signal based on the emergency braking command; and the driving module comprises a motor, and the motor is configured to stop running in response to the power-off signal. According to the emergency braking system, the vehicle can be braked under the emergency condition according to needs. In addition, the emergency braking system of the present invention brakes the vehicle based on a user request and using the battery management system, whereby the vehicle can decelerate or stop faster, improving the safety of the user and the vehicle.

Description

Technical Field

[0001] The present invention relates to the field of vehicles, in particular to the field of vehicle braking systems. More specifically, the present invention relates to a vehicle emergency braking system, an emergency braking method and a vehicle using the emergency braking system. Background Art

[0002] Uncontrolled acceleration of a vehicle is a dangerous situation that may lead to traffic accidents and injuries. Uncontrolled acceleration may be caused by a variety of factors, such as mechanical failure, driver error or poor road conditions. The vehicle may be damaged in the event of uncontrolled acceleration, especially in the event of an accident, which may cause the vehicle to crash or roll over. In many cases of traffic accidents reported so far, drivers have reported that it was because the vehicle continued to accelerate and exceeded their control. Especially for new energy vehicles, since they mainly use power batteries to provide electrical energy to the drive motor, the acceleration performance is much higher than that of traditional fuel vehicles. Therefore, the situation of uncontrolled acceleration of new energy vehicles will be more serious.

[0003] Therefore, a vehicle emergency braking system is needed to allow the driver to react to improve the safety of the vehicle. Summary of the invention

[0004] The purpose of the present invention is to solve the problems existing in the above-mentioned prior art and to provide an emergency braking system for a vehicle, so as to improve the safety of the vehicle in a cost-effective and reliable manner.

[0005] To this end, according to one aspect of the present invention, a vehicle emergency braking system is provided, the emergency braking system comprising: an input module, the input module being configured to receive an emergency braking request from a user and generate an input signal; a control module, the control module comprising a vehicle controller, the vehicle controller being configured to generate an emergency braking instruction based on the input signal; a processing module, the processing module comprising a battery management system, the battery management system being configured to generate a power-off signal based on the emergency braking instruction; a drive module, the drive module comprising a motor, the motor being configured to stop running in response to the power-off signal.

[0006] According to the above technical concept, the present invention may further include any one or more of the following optional forms.

[0007] In some optional forms, the input module further includes a human-computer interaction unit, which is configured with buttons, switches, and / or voice devices for use by the user.

[0008] In certain optional forms, the battery management system is further configured to generate a power limiting signal based on the emergency braking command, and the vehicle controller is further configured to cause the motor to enter a power limiting mode based on the power limiting signal.

[0009] In certain optional forms, the motor is further configured such that: in the power limiting mode, the output power of the motor is limited to a preset ratio of the rated power.

[0010] In certain optional forms, the battery management system is further configured to generate a neutral adjustment instruction when it is detected that the battery power of the vehicle is 0, and the vehicle controller is further configured to cause the vehicle to enter a neutral mode based on the neutral adjustment instruction.

[0011] According to another aspect of the present invention, a vehicle emergency braking method is provided, the emergency braking method comprising: receiving an emergency braking request from a user and generating an input signal; generating an emergency braking instruction based on the input signal; generating a power-off signal based on the emergency braking instruction; and stopping the operation of the vehicle's motor based on the power-off signal.

[0012] In certain optional forms, the user provides the emergency braking request through a human-machine interface unit, and the human-machine interface unit is configured with buttons, switches, and / or voice devices for use by the user.

[0013] In certain optional forms, the emergency braking method further includes: generating a power limit signal based on the emergency braking command, and causing the motor to enter a power limit mode based on the power limit signal.

[0014] In certain optional forms, the emergency braking method further includes: generating a neutral adjustment command when it is detected that the battery power of the vehicle is 0, and causing the vehicle to enter a neutral mode based on the neutral adjustment command.

[0015] According to yet another aspect of the present invention, a vehicle is provided, comprising the above-mentioned emergency braking system for the vehicle.

[0016] The present invention improves the braking system of the vehicle and adds an emergency braking system, which can brake the vehicle in an emergency as needed. In addition, the emergency braking system of the present invention brakes the vehicle based on user requests and uses a battery management system, so that the vehicle can slow down or stop faster. The user's provision of an emergency braking request allows the driver to actively respond to emergencies, making the emergency braking system more flexible and improving the safety of users and vehicles. In addition, by cutting off the power supply of the vehicle and slowing down the vehicle through the battery management system, the response speed and reliability of the emergency braking system can be improved, further improving the safety of the vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Other features and advantages of the present invention will be better understood through the following optional embodiments described in detail in conjunction with the accompanying drawings, in which:

[0018] Figure 1 A schematic diagram showing an emergency braking system for a vehicle according to an embodiment of the present invention;

[0019] Figure 2 A flow chart showing an emergency braking method for a vehicle according to an embodiment of the present invention;

[0020] Figure 3 A flowchart showing an emergency braking method for a vehicle according to another embodiment of the present invention; and

[0021] Figure 4 A flowchart showing an emergency braking method for a vehicle according to yet another embodiment of the present invention is shown. DETAILED DESCRIPTION

[0022] The implementation and use of the embodiments are discussed in detail below. However, it should be understood that the specific embodiments discussed are merely illustrative of specific ways to implement and use the invention, and are not intended to limit the scope of the invention.

[0023] Typically, new energy vehicles have high acceleration performance. The inventors realize that such high acceleration performance of the vehicle may cause the vehicle to accelerate out of control, which may damage the vehicle itself or even cause a traffic accident.

[0024] Reference Figure 1 , Figure 1 is a schematic diagram of an emergency braking system for a vehicle according to an embodiment of the present invention.

[0025] The emergency braking system 100 of the vehicle of the present invention includes an input module 110, a control module 120, a processing module 130 and a driving module 140. Specifically, the input module 110 is used to receive an emergency braking request from a user and generate an input signal based on the emergency braking request; the control module 120 includes a vehicle control unit (VCU) 121, which is used to receive an input signal from the input module 110 and generate an emergency braking instruction based on the input signal; the processing module 130 includes a battery management system (BMS) 131, which is used to receive an emergency braking instruction from the control module 120 and generate a power-off signal based on the emergency braking instruction; the driving module 140 includes a motor 141, and the motor 141 stops running in response to the power-off signal from the battery management system 131. Specifically, the battery management system 131 powers off the motor 141 based on the generated power-off signal, that is, cuts off the power supply of the motor 141, at which time, the motor 141 will stop running, thereby causing the vehicle to decelerate.

[0026] In this way, the emergency braking system 100 provided by the present invention can quickly and efficiently stop the acceleration of the vehicle in the case of out-of-control acceleration by receiving the emergency braking request from the user, and the user's provision of the emergency braking request can reduce the risk of misoperation, and the user can more clearly understand when to take emergency braking action, further improving the safety of the vehicle. In addition, by braking the vehicle through the battery management system 131, the speed and acceleration of the vehicle can be more easily controlled, which helps to improve the controllability and stability of driving, and further improve the safety of the vehicle and the user.

[0027] like Figure 1 As shown in , the input module 110 may include a human-computer interaction unit 111, which is used as an interface for emergency braking requests. The human-computer interaction unit 111 may be provided with buttons and / or switches, which may be provided at a position that is easily accessible to the driver, such as the steering wheel, the central console, etc. of the vehicle, so that the user can provide an emergency braking request in time in an emergency. Additionally, the human-computer interaction unit 111 may also be provided with a voice device such as a microphone, so that the user can provide a voice emergency braking request as needed.

[0028] In some embodiments, the battery management system 131 may also generate a power limit signal when receiving an emergency braking command, and the battery management system 131 sends the power limit signal to the vehicle controller 121, and the vehicle controller 121 causes the motor 141 to enter a power limit mode based on the power limit signal. In the power limit mode, the output power of the motor 141 is limited to a preset ratio of its rated power, for example, it is limited to 10% to 30% of its rated power, for example, about 15%, about 20%, etc. In this way, the speed of the vehicle is reduced by limiting the power of the motor 141, so that the driver has more time to deal with emergencies such as acceleration out of control. In addition, because the power limit of the motor 141 does not need to wait for the mechanical operation of the system, it can take effect quickly, reducing the response time of the system, which can help the vehicle to decelerate faster to respond to emergencies. For new energy vehicles, limiting the power of the motor 141 can also help protect the battery from the risk of over-discharge, because sharp acceleration and braking may cause energy to be fed back into the battery.

[0029] In some embodiments, when the battery management system 131 of the processing module 130 detects that the battery power of the vehicle is 0, the battery management system 131 can generate a neutral adjustment instruction, and the vehicle controller 121 can receive the neutral adjustment instruction and put the vehicle into neutral mode based on the neutral adjustment instruction. In neutral mode, the motor 141 is completely powered off and no longer provides torque or power to the wheels of the vehicle. Therefore, the motor 141 stops running and the vehicle relies on inertia to slide or be pushed. In this way, the vehicle can be removed from the road when the vehicle fails or needs emergency repair.

[0030] Reference Figure 2 , Figure 2 The present invention provides an emergency braking method for a vehicle according to an embodiment of the present invention.

[0031] In this embodiment, the emergency braking method of the vehicle includes the following steps:

[0032] Step S101: receiving an emergency braking request from a user and generating an input signal.

[0033] In step S101 , the user's emergency braking request may be received through the input module 110 and an input signal may be generated.

[0034] Step S102: Generate an emergency braking instruction based on the input signal.

[0035] In step S102 , the control module 120 including the vehicle controller 121 may receive an input signal and generate an emergency braking instruction.

[0036] Step S103: Generate a power-off signal based on the emergency braking instruction.

[0037] In step S103 , the processing module 130 including the battery management system 131 may receive an emergency braking instruction and generate a power-off signal.

[0038] Step S104: Stopping the motor of the vehicle based on the power-off signal.

[0039] In step S104, in the event of a power outage, the motor will stop running, causing the vehicle to decelerate.

[0040] In this way, the vehicle emergency braking method of the present invention can brake the vehicle in an emergency situation as needed, allowing the driver to actively respond to the emergency situation, thereby making the emergency braking process more flexible and improving the safety of users and vehicles.

[0041] In some embodiments, the user can provide an emergency braking request through a human-machine interaction unit, and the human-machine interaction unit is configured with buttons and / or switches for the user to use. In this way, it is convenient for the user to provide an emergency braking request in a timely manner.

[0042] Reference Figure 3 , Figure 3 is a flowchart of an emergency braking method for a vehicle according to another embodiment of the present invention.

[0043] In this embodiment, the emergency braking method of the vehicle includes the following steps:

[0044] Step S201: receiving an emergency braking request from a user and generating an input signal.

[0045] In step S201 , the input module 110 of the human-machine interaction unit 111 may be configured to receive an emergency braking request from a user and generate an input signal.

[0046] Step S202: Generate an emergency braking instruction based on the input signal.

[0047] In step S202 , the control module 120 configured with the vehicle controller 121 may receive an input signal and generate an emergency braking command.

[0048] Step S203: Generate a power limit signal based on the emergency braking instruction.

[0049] In step S203 , the battery management system 131 may receive an emergency braking instruction and generate a power limiting signal.

[0050] Step S204: enabling the motor to enter a power limiting mode based on the power limiting signal.

[0051] In step S204 , the vehicle controller 121 may receive a power limiting signal and control the motor to enter a power limiting mode.

[0052] In this way, the emergency braking method of the vehicle according to the present embodiment can reduce the speed of the vehicle by limiting the power of the motor, thereby allowing the driver more time to respond to emergency situations such as uncontrolled acceleration.

[0053] Reference Figure 4 , Figure 4 A flowchart showing an emergency braking method for a vehicle according to yet another embodiment of the present invention is shown.

[0054] In this embodiment, the emergency braking method of the vehicle includes the following steps:

[0055] Step S301: Determine whether the battery power of the vehicle is 0.

[0056] In step S301 , the battery management system 131 may be used to detect whether the battery power of the vehicle is 0.

[0057] Step S302: Generate a neutral adjustment instruction when the battery power is 0.

[0058] In step S302 , the battery management system 131 may generate a neutral adjustment instruction when detecting that the battery power is 0.

[0059] Step S303: The vehicle is put into a neutral mode based on the neutral adjustment instruction.

[0060] In step S303 , the vehicle controller 121 may receive a neutral adjustment instruction and enable the vehicle to enter a neutral mode.

[0061] In this way, vehicles can be removed from the road in the event of a breakdown or emergency repair.

[0062] The vehicle emergency braking system 100 of the present invention brakes the vehicle based on a user request and uses a battery management system, which can decelerate the vehicle more quickly in an emergency and improve the safety of the driver and passengers. In addition, the emergency braking system 100 of the present invention establishes a communication path between the human-machine interaction unit 111, the vehicle controller 121 and the battery management system 131, so that the stop acceleration and emergency braking functions can be seamlessly integrated into the existing vehicle structure, reducing manufacturing costs.

[0063] It should be understood that the embodiments shown in the figures only illustrate optional configurations of the emergency braking system of the vehicle according to the present invention, which are however only illustrative and not restrictive, and other configurations may be adopted without departing from the spirit and scope of the present invention.

[0064] The technical content and technical features of the present invention have been disclosed above. However, it can be understood that under the creative ideas of the present invention, those skilled in the art can make various changes and improvements to the above disclosed concepts, but they all belong to the protection scope of the present invention. The description of the above embodiments is illustrative rather than restrictive, and the protection scope of the present invention is determined by the claims.

Claims

1. A vehicle emergency braking system, characterized in that: The emergency braking system (100) comprises: An input module (110), the input module (110) being configured to receive an emergency braking request from a user and generate an input signal; A control module (120), the control module (120) comprising a vehicle controller (121), the vehicle controller (121) being configured to generate an emergency braking instruction based on the input signal; A processing module (130), the processing module (130) comprising a battery management system (131), the battery management system (131) being configured to generate a power-off signal based on the emergency braking instruction; A driving module (140) includes a motor (141), wherein the motor (141) is configured to stop running in response to the power-off signal.

2. The vehicle emergency braking system according to claim 1, characterized in that: The input module (110) comprises a human-machine interaction unit (111), and the human-machine interaction unit (111) is configured with buttons, switches, and / or voice devices for use by the user.

3. The vehicle emergency braking system according to claim 1, characterized in that: The battery management system (131) is further configured to generate a power limiting signal based on the emergency braking instruction, and the vehicle controller (121) is further configured to enable the motor (141) to enter a power limiting mode based on the power limiting signal.

4. The vehicle emergency braking system according to claim 3, characterized in that: The motor (141) is further configured such that: in the power limiting mode, the output power of the motor (141) is limited to a preset ratio of the rated power.

5. The vehicle emergency braking system according to claim 1, characterized in that: The battery management system (131) is further configured to generate a neutral adjustment instruction when detecting that the battery power of the vehicle is 0, and the vehicle controller (121) is further configured to enable the vehicle to enter a neutral mode based on the neutral adjustment instruction.

6. A vehicle emergency braking method, characterized in that: The emergency braking method comprises: Receiving an emergency braking request from a user and generating an input signal (S101); generating an emergency braking command based on the input signal (S102); generating a power-off signal based on the emergency braking instruction (S103); The motor of the vehicle is stopped based on the power-off signal ( S104 ).

7. The vehicle emergency braking method according to claim 6, characterized in that: The user provides the emergency braking request through a human-machine interface unit, and the human-machine interface unit is configured with buttons, switches, and / or voice devices for use by the user.

8. The vehicle emergency braking method according to claim 6, characterized in that: The emergency braking method further includes: generating a power limit signal based on the emergency braking instruction (S203), and causing the motor to enter a power limit mode based on the power limit signal (S204).

9. The vehicle emergency braking method according to claim 6, characterized in that: The emergency braking method further includes: generating a neutral adjustment instruction when it is detected that the battery power of the vehicle is 0 (S302), and causing the vehicle to enter a neutral mode based on the neutral adjustment instruction (S303).

10. A vehicle, characterized in that: The vehicle comprises an emergency brake system for a vehicle according to any one of claims 1 to 5.

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