Intelligent active speed limiting system and method and vehicle

Abstract

The invention relates to the technical field of automobile speed limiting, in particular to an intelligent active speed limiting system and method and a vehicle. The intelligent active speed limiting method comprises the steps that a detection module is used for detecting the speed limiting value of a current road of the vehicle and the current wheel speed of the vehicle, and the speed limiting value and the current wheel speed are sent to a control module; the control module is used for receiving the current wheel speed, converting the current wheel speed into the whole vehicle speed and sending the whole vehicle speed to the speed limiting module; and receiving the whole vehicle speed through a speed limiting module, and limiting the whole vehicle speed of the vehicle based on the speed limiting value when the whole vehicle speed is greater than the speed limiting value. Therefore, the problems that the cruise speed set by the driver exceeds the speed limit requirement, traffic accidents or violation of rules are caused and the like due to the fact that the driver may not see or ignore the road speed limit sign due to the fact that the driver is blocked by obstacles or distracted and the like in the process of driving the vehicle by using a constant speed cruise or traffic jam auxiliary function are solved; by adjusting the speed limiting function of the engine, active speed limiting of the whole vehicle is achieved.

Description

Technical Field

[0001] The present application relates to the technical field of automobile speed limit, and in particular to an intelligent active speed limit system and method, and a vehicle. Background Art

[0002] When the driver is driving the vehicle using cruise control or traffic jam assistance functions, the driver may not see or ignore the speed limit signs on the road due to obstacles or distraction, causing the cruise speed set by the driver to exceed the speed limit requirement, resulting in traffic accidents or violations. Summary of the invention

[0003] The present application provides an intelligent active speed limit system and method, and a vehicle, so as to solve the problem that when a driver uses cruise control or traffic jam assistance function to drive a vehicle, he may not see or ignore the road speed limit sign due to obstacles or distraction, which may cause the cruising speed set by the driver to exceed the speed limit requirement, causing traffic accidents or violations. The active speed limit of the whole vehicle is achieved by adjusting the engine speed limit function.

[0004] The first aspect of the present application provides an intelligent active speed limit system, comprising: a detection module, the detection module is used to detect the speed limit value of the current road of the vehicle and the current wheel speed of the vehicle, and send the speed limit value and the current wheel speed to a control module; a control module, the detection module is connected to the control module, the control module is used to receive the current wheel speed, convert the current wheel speed into a whole vehicle speed, and send the whole vehicle speed to the speed limit module; a speed limit module, the speed limit module is connected to the control module, the speed limit module is used to receive the whole vehicle speed, and limit the whole vehicle speed of the vehicle based on the speed limit value when the whole vehicle speed is greater than the speed limit value.

[0005] Optionally, the detection module includes: an identification unit, which is connected to the control module and is used to identify the speed limit value; and a collection unit, which is connected to the control module and is used to collect the current wheel speed.

[0006] Optionally, the control module includes: a first control unit, one end of the first control unit is connected to the acquisition unit, and the other end of the first control unit is connected to the speed limit module, for receiving the current wheel speed and converting the current wheel speed into the whole vehicle speed; a second control unit, a first end of the second control unit is connected to the identification unit, and the second end of the second control unit is connected to the other end of the first control unit and the speed limit module, for receiving the speed limit value sent by the identification unit, and receiving the whole vehicle speed sent by the first control unit, and sending the speed limit value and the whole vehicle speed to the speed limit module.

[0007] Optionally, the above-mentioned intelligent active speed limit system further includes: a display module, which is connected to the third end of the second control unit and is used to display the speed limit value and the vehicle speed.

[0008] Optionally, the above-mentioned intelligent active speed limit system also includes: a reminder module, which is connected to the speed limit module, and is used to perform an acoustic alarm reminder and / or an optical alarm reminder when the speed limit module detects that the vehicle speed is greater than the speed limit value.

[0009] Optionally, the reminder module includes: an acoustic alarm unit, which is connected to the speed limit module and is used to issue an acoustic alarm reminder when the speed limit module detects that the vehicle speed is greater than the speed limit value; and / or an optical alarm unit, which is connected to the speed limit module and is used to issue an optical alarm reminder when the speed limit module detects that the vehicle speed is greater than the speed limit value.

[0010] Optionally, the above-mentioned intelligent active speed limit system also includes: a first communication module arranged between the display module and the second control unit, a second communication module between the second control unit and the identification unit, a third communication module between the second control unit and the first control unit, a fourth communication module between the first control unit and the speed limit module, and a fifth communication module between the first control unit and the collection unit.

[0011] Optionally, the first communication module, the second communication module, the third communication module, the fourth communication module and the fifth communication module adopt a preset bus protocol.

[0012] A second aspect of the present application provides a vehicle, comprising the intelligent active speed limit system as described in the above embodiment.

[0013] The third aspect of the present application provides an intelligent active speed limit method, including: detecting the speed limit value of the current road of the vehicle and the current wheel speed of the vehicle; converting the current wheel speed into the speed of the entire vehicle; if the speed of the entire vehicle is greater than the speed limit value, limiting the speed of the entire vehicle based on the speed limit value.

[0014] In the above implementation, the detection module is used to detect the speed limit value of the current road of the vehicle and the current wheel speed of the vehicle, and the speed limit value and the current wheel speed are sent to the control module, the control module is used to receive the current wheel speed, the current wheel speed is converted into the vehicle speed, and the vehicle speed is sent to the speed limit module, the vehicle speed is received by the speed limit module, and when the vehicle speed is greater than the speed limit value, the vehicle speed is limited based on the speed limit value. In this way, the problem that the driver may not see or ignore the road speed limit sign due to obstacles or distraction when driving the vehicle using the cruise control or traffic congestion assistance function is solved, which causes the cruising speed set by the driver to exceed the speed limit requirement, causing traffic accidents or violations, etc., and the active speed limit of the vehicle is achieved by adjusting the engine speed limit function.

[0015] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0017] Figure 1 A schematic diagram of an intelligent active speed limiting system provided according to an embodiment of the present application;

[0018] Figure 2 is a schematic diagram of an intelligent active speed limiting system according to an embodiment of the present application;

[0019] Figure 3 This is an example diagram of an intelligent active speed limiting method according to an embodiment of the present application. DETAILED DESCRIPTION

[0020] Embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present application, and should not be construed as limiting the present application.

[0021] The following describes the intelligent active speed limit system and method and vehicle of the embodiment of the present application with reference to the accompanying drawings. In view of the above-mentioned background technology, when the driver uses the cruise control or traffic congestion assistance function to drive the vehicle, due to obstacles or distraction, the driver may not see or ignore the road speed limit sign, which causes the cruising speed set by the driver to exceed the speed limit requirement, causing traffic accidents or violations. The present application provides an intelligent active speed limit system, in which a detection module is used to detect the speed limit value of the current road of the vehicle and the current wheel speed of the vehicle, and the speed limit value and the current wheel speed are sent to the control module, the control module is used to receive the current wheel speed, the current wheel speed is converted into the whole vehicle speed, and the whole vehicle speed is sent to the speed limit module, the whole vehicle speed is received by the speed limit module, and when the whole vehicle speed is greater than the speed limit value, the whole vehicle speed of the vehicle is limited based on the speed limit value. This solves the problem that when the driver is driving the vehicle with cruise control or traffic jam assistance functions, he may not see or ignore the speed limit signs on the road due to obstruction by obstacles or distraction, which may cause the cruise speed set by the driver to exceed the speed limit requirement, causing traffic accidents or violations. By adjusting the engine speed limit function, active speed limit of the whole vehicle can be achieved.

[0022] Specifically, Figure 1 A schematic diagram of an intelligent active speed limiting system provided in an embodiment of the present application.

[0023] like Figure 1 As shown, the intelligent active speed limiting system includes: a detection module 100 , a control module 200 and a speed limiting module 300 .

[0024] Among them, the detection module 100, the detection module 100 is used to detect the speed limit value of the current road of the vehicle and the current wheel speed of the vehicle, and send the speed limit value and the current wheel speed to the control module 200; the control module 200, the detection module 100 is connected to the control module 200, the control module 200 is used to receive the current wheel speed, convert the current wheel speed into the whole vehicle speed, and send the whole vehicle speed to the speed limit module 300; the speed limit module 300, the speed limit module 300 is connected to the control module 200, the speed limit module 300 is used to receive the whole vehicle speed, and limit the whole vehicle speed of the vehicle based on the speed limit value when the whole vehicle speed is greater than the speed limit value.

[0025] Optionally, in some embodiments, the detection module 100 includes: an identification unit connected to the control module 200 and used to identify the speed limit value; and a collection unit connected to the control module 200 and used to collect the current wheel speed.

[0026] Optionally, in some embodiments, the control module 200 includes: a first control unit, one end of which is connected to the acquisition unit, and the other end of the first control unit is connected to the speed limit module 300, for receiving the current wheel speed and converting the current wheel speed into the speed of the entire vehicle; a second control unit, a first end of the second control unit is connected to the identification unit, and a second end of the second control unit is connected to the other end of the first control unit and the speed limit module 300, for receiving the speed limit value sent by the identification unit, and receiving the vehicle speed sent by the first control unit, and sending the speed limit value and the vehicle speed to the speed limit module 300.

[0027] Optionally, in some embodiments, the above-mentioned intelligent active speed limit system 10 further includes: a display module, the display module is connected to the third end of the second control unit, and is used to display the speed limit value and the vehicle speed.

[0028] Optionally, in some embodiments, the above-mentioned intelligent active speed limit system 10 further includes: a reminder module, the reminder module is connected to the speed limit module 300, and the reminder module is used to perform an acoustic alarm reminder and / or an optical alarm reminder when the speed limit module 300 detects that the vehicle speed is greater than the speed limit value.

[0029] Optionally, in some embodiments, the reminder module includes: an acoustic alarm unit, which is connected to the speed limit module 300 and is used to issue an acoustic alarm reminder when the speed limit module 300 detects that the vehicle speed is greater than the speed limit value; and / or an optical alarm unit, which is connected to the speed limit module 300 and is used to issue an optical alarm reminder when the speed limit module 300 detects that the vehicle speed is greater than the speed limit value.

[0030] Optionally, in some embodiments, the above-mentioned intelligent active speed limit system 10 further includes: a first communication module arranged between the display module and the second control unit, a second communication module between the second control unit and the identification unit, a third communication module between the second control unit and the first control unit, a fourth communication module between the first control unit and the speed limit module 300, and a fifth communication module between the first control unit and the collection unit.

[0031] Optionally, in some embodiments, the first communication module, the second communication module, the third communication module, the fourth communication module and the fifth communication module adopt a preset bus protocol.

[0032] Specific reference Figure 2 As shown, the intelligent active speed limit system, such as Figure 2 As shown, the system includes a front camera FCM, a wheel speed sensor WSS, a vehicle stability controller ESP, an instrument IHU, a vehicle domain controller BDM, an engine controller EMS, and necessary wiring harnesses.

[0033] Among them, the front camera FCM is the recognition unit mentioned above, the vehicle stability controller ESP is the first control unit mentioned above, the wheel speed sensor WSS is the acquisition unit mentioned above, the instrument IHU is the display module mentioned above, the vehicle domain controller BDM is the second control unit mentioned above, and the engine controller EMS is the speed limit module mentioned above.

[0034] The camera FCM is connected to the vehicle domain controller BDM through the CAN bus (i.e. the second communication module), and the camera FCM can identify the speed limit value on the speed limit sign; the vehicle domain controller BDM is connected to the vehicle stability controller ESP and the engine controller EMS through the CAN bus (the third communication module), and the vehicle domain controller BDM is connected to the instrument IHU through the CAN bus (i.e. the first communication module); the wheel speed sensor WSS is connected to the vehicle stability controller ESP through the wiring harness (i.e. the fifth communication module), and can collect the real-time wheel speed of the vehicle and send the wheel speed to the vehicle stability controller ESP; the vehicle stability controller ESP is connected to the engine controller EMS and the vehicle domain controller BDM through the CAN bus (i.e. the fourth communication module), and converts the wheel speed collected from the wheel speed sensor WSS into the vehicle speed, and sends the vehicle speed to the engine controller EMS and the vehicle domain controller BDM; the necessary wiring harness includes the communication line of the CAN bus, and also includes the power supply and signal lines for the normal operation of each functional component.

[0035] Among them, the CAN communication between the instrument IHU, vehicle stability controller ESP, vehicle domain controller BDM, engine controller EMS, and front camera FCM adopts the ISO11898 bus protocol.

[0036] Specifically, the front camera FCM identifies the speed limit value of the speed limit sign on the current road where the vehicle is located, and is connected to the vehicle domain controller BDM via the CAN bus. The front camera FCM sends the identified speed limit value to the vehicle domain controller BDM via the CAN bus.

[0037] The vehicle domain controller BDM is connected to the vehicle stability controller ESP, engine controller EMS and instrument IHU through the CAN bus.

[0038] The wheel speed sensor WSS is connected to the vehicle stability controller ESP through a wiring harness, collects the current wheel speed of the vehicle, and sends the current wheel speed to the vehicle stability controller ESP.

[0039] The vehicle stability controller ESP is connected to the engine controller EMS and the vehicle domain controller BDM through the CAN bus, and calculates the vehicle speed through an internal algorithm based on the current wheel speed collected from the wheel speed sensor WSS, combined with parameters such as the wheel radius and speed, and sends the vehicle speed to the engine controller EMS and the vehicle domain controller BDM.

[0040] The instrument IHU can send and parse CAN messages to display the current road speed limit sign, speed limit value and vehicle speed.

[0041] The vehicle domain controller BDM sends the speed limit value to the instrument IHU via a bus message for display. The instrument IHU displays the current speed limit value and the speed of the vehicle. When the speed limit module 300 detects that the vehicle speed is greater than the speed limit value, the acoustic alarm unit performs an acoustic alarm reminder; and / or, when the speed limit module 300 detects that the vehicle speed is greater than the speed limit value, the optical alarm unit performs an optical alarm reminder to remind the driver that the current speed exceeds the speed limit value, so that the driver can manually reduce the speed of the vehicle.

[0042] The engine controller EMS can send and parse CAN messages, and the engine controller EMS electronically controls the fuel supply of the engine.

[0043] For example, when the vehicle is in cruise control mode, the vehicle domain controller BDM sends the speed limit value and the current cruise control speed to the engine controller EMS through the CAN bus. The engine controller EMS compares the speed limit value with the current cruise control speed. If the speed limit value is greater than the current cruise control speed, the instrument IHU displays the speed limit value of the current section of the road to remind you, and the engine controller EMS reduces the engine's fuel supply until the vehicle speed drops to the speed limit value.

[0044] According to the intelligent active speed limit system proposed in the embodiment of the present application, the detection module is used to detect the speed limit value of the current road of the vehicle and the current wheel speed of the vehicle, and the speed limit value and the current wheel speed are sent to the control module, the control module is used to receive the current wheel speed, the current wheel speed is converted into the speed of the whole vehicle, and the speed of the whole vehicle is sent to the speed limit module, the speed of the whole vehicle is received by the speed limit module, and when the speed of the whole vehicle is greater than the speed limit value, the speed of the whole vehicle is limited based on the speed limit value. In this way, the problem that the driver may not see or ignore the road speed limit sign due to obstacles or distraction when driving the vehicle using the cruise control or traffic congestion assistance function is solved, which causes the cruising speed set by the driver to exceed the speed limit requirement, causing traffic accidents or violations, etc., and the active speed limit of the whole vehicle is achieved by adjusting the engine speed limit function.

[0045] An embodiment of the present application also provides a vehicle, comprising the intelligent active speed limit system as described in the above embodiment.

[0046] Next, the intelligent active speed limiting method proposed according to the embodiment of the present application is described with reference to the accompanying drawings.

[0047] Figure 3 It is a schematic diagram of the intelligent active speed limiting method according to an embodiment of the present application.

[0048] like Figure 3As shown, the intelligent active speed limiting method includes the following steps:

[0049] In step S301 , the speed limit value of the current road of the vehicle and the current wheel speed of the vehicle are detected.

[0050] In step S302, the current wheel speed is converted into the vehicle speed.

[0051] In step S303, if the vehicle speed is greater than the speed limit, the vehicle speed is limited based on the speed limit.

[0052] It should be noted that the above explanation of the embodiment of the intelligent active speed limiting system is also applicable to the intelligent active speed limiting method of this embodiment, which will not be repeated here.

[0053] According to the intelligent active speed limit method proposed in the embodiment of the present application, the speed limit value of the current road of the vehicle and the current wheel speed of the vehicle are detected, and the current wheel speed is converted into the speed of the whole vehicle. If the speed of the whole vehicle is greater than the speed limit value, the speed of the whole vehicle is limited based on the speed limit value. In this way, the problem that the driver may not see or ignore the road speed limit sign due to obstacles or distraction when driving the vehicle using the cruise control or traffic congestion assistance function is solved, which causes the cruising speed set by the driver to exceed the speed limit requirement, causing traffic accidents or violations, etc., and the active speed limit of the whole vehicle is achieved by adjusting the engine speed limit function.

[0054] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or N embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0055] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, "N" means at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0056] Any process or method description in a flowchart or otherwise described herein may be understood to represent a module, fragment or portion of code comprising one or more executable instructions for implementing the steps of a custom logical function or process, and the scope of the preferred embodiments of the present application includes alternative implementations in which functions may not be performed in the order shown or discussed, including performing functions in a substantially simultaneous manner or in reverse order depending on the functions involved, which should be understood by technicians in the technical field to which the embodiments of the present application belong.

Claims

1. An intelligent active speed limit system, characterized in that: include: A detection module, the detection module is used to detect the speed limit value of the current road of the vehicle and the current wheel speed of the vehicle, and send the speed limit value and the current wheel speed to the control module; A control module, wherein the detection module is connected to the control module, and the control module is used to receive the current wheel speed, convert the current wheel speed into a whole vehicle speed, and send the whole vehicle speed to a speed limit module; A speed limit module is connected to the control module, and is used to receive the vehicle speed and limit the vehicle speed based on the speed limit value when the vehicle speed is greater than the speed limit value.

2. The system according to claim 1, characterized in that The detection module comprises: an identification unit, the identification unit being connected to the control module and configured to identify the speed limit value; A collection unit is connected to the control module and is used to collect the current wheel speed.

3. The system according to claim 2, characterized in that The control module comprises: A first control unit, one end of which is connected to the acquisition unit, and the other end of which is connected to the speed limit module, for receiving the current wheel speed and converting the current wheel speed into the vehicle speed; A second control unit, wherein a first end of the second control unit is connected to the identification unit, and a second end of the second control unit is connected to the other end of the first control unit and the speed limit module, for receiving the speed limit value sent by the identification unit, and receiving the vehicle speed sent by the first control unit, and sending the speed limit value and the vehicle speed to the speed limit module.

4. The system according to claim 3, characterized in that Also includes: A display module is connected to the third end of the second control unit and is used to display the speed limit value and the vehicle speed.

5. The system according to claim 1, characterized in that Also includes: A reminder module, the reminder module is connected to the speed limit module, and the reminder module is used to perform an acoustic alarm reminder and / or a visual alarm reminder when the speed limit module detects that the vehicle speed is greater than the speed limit value.

6. The system according to claim 5, characterized in that The reminder module comprises: An acoustic alarm unit, the acoustic alarm unit is connected to the speed limit module, and is used to issue an acoustic alarm reminder when the speed limit module detects that the vehicle speed is greater than the speed limit value; And / or, an optical alarm unit, the optical alarm unit is connected to the speed limit module, and is used for issuing an optical alarm reminder when the speed limit module detects that the vehicle speed is greater than the speed limit value.

7. The system according to claim 4, characterized in that Also includes: A first communication module is arranged between the display module and the second control unit, a second communication module is arranged between the second control unit and the identification unit, a third communication module is arranged between the second control unit and the first control unit, a fourth communication module is arranged between the first control unit and the speed limit module, and a fifth communication module is arranged between the first control unit and the collection unit.

8. The system according to claim 7, characterized in that The first communication module, the second communication module, the third communication module, the fourth communication module and the fifth communication module adopt a preset bus protocol.

9. A vehicle, characterized in that: include: An intelligent active speed limiting system as claimed in any one of claims 1 to 8.

10. An intelligent active speed limiting method, characterized in that: The intelligent active speed limiting system according to any one of claims 1 to 8 is used, wherein the method comprises: Detecting a speed limit value of a current road of a vehicle and a current wheel speed of the vehicle; Converting the current wheel speed into the vehicle speed; If the vehicle speed is greater than the speed limit value, the vehicle speed is limited based on the speed limit value.

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