Automatic transmission shift switch acquisition control system, method and heavy-duty vehicle

Abstract

The present invention provides an automatic transmission shift switch acquisition control system, method and heavy-duty vehicle, which relates to the intelligent technology field of heavy-duty vehicles. The shift knob and the shift combination handle are respectively connected to the signal acquisition controller for communication; the signal acquisition controller is connected to the TCU controller for communication; the signal acquisition controller respectively collects the high-level information of the shift knob and the high-level information of the shift combination handle, parses the high-level information into TC messages, sends the corresponding shift information to the TCU controller through the TC messages, and the TCU controller performs the shift action. The present invention can use the shift knob and the shift combination handle to communicate with the signal acquisition controller respectively, identify the gear position state, and the TCU controller performs the control, so that the driver's operation is simplified and the operation complexity is reduced. The system also provides a way to prevent the driver from operating incorrectly, reduces the driver's operation requirements, and ensures driving safety.

Description

Technical Field

[0001] The present invention relates to the technical field of intelligent heavy-duty vehicles, and in particular to an automatic transmission hand-gear switch acquisition control system and method and a heavy-duty vehicle. Background Art

[0002] Heavy-duty vehicles refer to M and N vehicles with a maximum total mass greater than 3500Kg. This type of vehicle is a vehicle train consisting of a heavy-duty tractor and a heavy-duty trailer. Heavy-duty vehicles mostly use hand-held gearshifts, which is because the gear lever is pushed towards the arm when shifting gears. There are two types of gearshift arrangements for cars: ground gearshifts and hand-held gearshifts. The gearshift lever of a car is located at the lower right of the steering wheel, which is called a hand-held gearshift.

[0003] The traditional transmission shift lever is complicated to operate, has high requirements on the driver's operation, increases the driver's driving burden, and reduces the available space in the cab.

[0004] With the intelligent development of heavy-duty vehicles, automatic transmissions have gradually replaced ordinary mechanical transmissions, and younger drivers want simpler driving operations, so the trend of using hand-held gear switches instead of ordinary gear shift levers is becoming more and more obvious, which can also save space inside the cab.

[0005] In an automatic transmission, since the TCU only performs specific shift calculations and controls the transmission shift process, and in order to ensure versatility and compatibility, the TCU is generally unable to collect the hand-shift switch input, resulting in the TCU being unable to be used in conjunction with the hand-shift switch. Even if some vehicles use a TCU to control the automatic transmission, due to the large number of vehicle gears, the TCU control cannot match the shift knob position, increasing the complexity of the shift operation, and is prone to misoperation, affecting driving safety. Summary of the invention

[0006] The present invention provides an automatic transmission hand-shift switch acquisition and control system, which is controlled by a TCU controller, simplifies the driver's operation and reduces the complexity of the operation. The system also provides a method for preventing the driver from operating incorrectly.

[0007] The system includes: shift knob, shift combination handle, signal acquisition controller and TCU controller;

[0008] The shift knob and the shift combination handle are respectively connected to the signal acquisition controller for communication;

[0009] The signal acquisition controller is communicatively connected with the TCU controller;

[0010] The signal acquisition controller collects the high-level information of the shift knob and the high-level information of the shift combination handle respectively, parses the high-level information into TC messages, sends the corresponding shift information to the TCU controller through the TC messages, and the TCU controller executes the shift action.

[0011] It should be further explained that the shift knob includes: reverse gear creep mode Rm, reverse gear R, neutral gear N, forward gear D and forward gear creep Dm;

[0012] The shift combination handle includes: A / M gear switch, upshift switch and downshift switch.

[0013] It should be further explained that the shift knob is in a gear position at any time, and the gear position corresponds to a high level output;

[0014] The signal acquisition controller continuously obtains high-level information and sends it to the TCU controller in the form of TC messages. The TCU controller identifies the gear shift information corresponding to the TC messages and executes the gear shift operation.

[0015] It should be further explained that the shift knob and the shift combination handle are respectively connected to the signal acquisition controller through hard wires for communication;

[0016] The signal acquisition controller is connected to the TCU controller via the CAN bus.

[0017] It should be further explained that each switch position of the shift combination handle is a self-resetting switch.

[0018] The present invention also provides an automatic transmission shift switch acquisition control method, the method comprising:

[0019] When the TC message is sending the shift information each time, it is determined whether the currently sent shift information is consistent with the gear position information corresponding to the position of the gear knob. If they are consistent, it means that the gear knob has not been turned during the process. If they are inconsistent, it means that the gear knob has been turned during the TC message sending the shift information.

[0020] When the TC message completes sending the shift information, the TCU controller re-detects the high level state of the switch, determines the position of the shift knob and immediately sends the corresponding shift information. This process can be repeated until a consistency is detected;

[0021] When the TC message sends an invalid value, no judgment is made.

[0022] It should be further explained that in the method, when the shift knob and the shift combination handle both output rising edge signals, the signal acquisition controller first sends the shift information corresponding to the shift knob, and at the same time uses the RS register to latch the input signal of the shift combination handle;

[0023] The signal acquisition controller continuously detects whether the shift information of the shift knob has been sent;

[0024] If the transmission is not completed, the shift information of the shift combination handle will continue to be latched into the RS register;

[0025] If the transmission is completed, the gear shift information in the RS register is read and the corresponding gear shift information is sent to the TCU controller.

[0026] It should be further explained that when the signal acquisition controller receives two or more shift switch rising edge signals from the shift knob, it indicates that the shift knob is faulty and an alarm is given through the vehicle instrument;

[0027] If the up and down switches of the shift combination handle send out rising edge signals at the same time, it means that the shift combination handle is faulty and an alarm will be given through the vehicle instrument.

[0028] It should be further explained that when the signal acquisition controller receives the signal that the shift knob is turned to the Rm gear, the signal acquisition controller interprets the Rm gear into a reverse gear creep TC message and sends it to the TCU controller;

[0029] When the signal acquisition controller receives the signal that the shift knob is turned to the R gear, the signal acquisition controller interprets the R gear into a reverse gear TC message and sends it to the TCU controller;

[0030] When the signal acquisition controller receives the signal that the shift knob is turned to N gear, the signal acquisition controller interprets N gear into a neutral gear TC message and sends it to the TCU controller;

[0031] When the signal acquisition controller receives the signal that the shift knob is turned to the D gear, the signal acquisition controller parses the D gear into a forward TC message and sends it to the TCU controller;

[0032] When the signal acquisition controller receives the signal that the shift knob is turned to the Dm gear, the signal acquisition controller interprets the Dm gear into a forward gear creep TC message and sends it to the TCU controller;

[0033] When the signal acquisition controller receives the signal that the shift knob is turned to the Dm gear, the signal acquisition controller interprets the Dm gear into a forward gear creep TC message and sends it to the TCU controller;

[0034] When the signal acquisition controller receives the A / M switch selected by the shift combination handle, the signal acquisition controller interprets the A / M switch into an A / M mode switching TC message and sends it to the TCU controller;

[0035] When the signal acquisition controller receives the upward movement of the shift combination handle, the signal acquisition controller parses the upward movement information into a TC message for upshifting and sends it to the TCU controller;

[0036] When the signal acquisition controller receives the signal that the shift combination handle is pushed downward, the signal acquisition controller parses the downward push information into a downshift TC message and sends it to the TCU controller.

[0037] The present invention also provides a heavy-duty vehicle, comprising an automatic transmission shift switch acquisition and control system.

[0038] It can be seen from the above technical solutions that the present invention has the following advantages:

[0039] In the automatic transmission hand-shift switch acquisition control system provided by the present invention, a hand-shift switch is used and a signal acquisition controller is developed to replace the ordinary shift lever, so that the driver's operation is simplified and the purchase cost is reduced. At the same time, the control strategy also provides a method to prevent the driver from operating incorrectly, reducing the driver's operating requirements.

[0040] The present invention can perform logical processing on the driver's misoperation: when the driver turns the shift knob while sending message information, the signal acquisition controller will send the current shift information to the TCU controller, and then send the shift information of the current position of the shift knob to ensure that the gear position of the transmission matches the position of the shift knob. When the driver operates the shift combination handle and the Rm / R / N / D / Dm shift knob at the same time, the shift information of the shift knob is sent first in order and then the shift information of the shift combination handle is sent to ensure orderliness and information integrity.

[0041] The present invention can also use a graphical programming method to implement program development. With the switch input resources, single-chip computer operation method, and CAN communication method, the hand-shift switch signal collection, transmission, and processing can be completed. The implementation method is simple, and it can replace the commonly used shift lever of the automatic transmission and optimize the cab space. At the same time, error prevention processing is added to the strategy, which can reduce the driver's operating requirements and reduce the driver's operating burden. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] In order to more clearly illustrate the technical solution of the present invention, the accompanying drawings required for use in the description will be briefly introduced below. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0043] Figure 1 Collect the control system diagram for the automatic transmission shift switch;

[0044] Figure 2 The flow chart of the control method for automatic transmission shift switch acquisition;

[0045] Figure 3 This is a flow chart of an embodiment of an automatic transmission shift switch acquisition control method;

[0046] Figure 4 is a flow chart of another embodiment of the method;

[0047] Figure 5 A flowchart of an example method is shown in FIG. DETAILED DESCRIPTION

[0048] like Figure 1 The diagram provided in the automatic transmission hand-shift switch acquisition and control system provided by the present invention only illustrates the basic concept of the present invention in a schematic manner, and therefore the diagram only shows the modules related to the present invention rather than the number and function of the modules in actual implementation. In actual implementation, the function, quantity and role of each module may be changed arbitrarily, and the function and use of the module may also be more complicated.

[0049] The automatic transmission hand-gear switch acquisition control system involved in the present invention is that the automatic transmission has gradually replaced the ordinary mechanical transmission, and the younger drivers want the driving operation to be simpler. In addition, the present invention also uses the shift knob, the shift combination handle, the signal acquisition controller and the TCU controller to establish a shift model, uses sensor monitoring, data transmission and other technologies to identify the gear state, and the TCU controller performs control, so that the driver's operation is simplified and the operation complexity is reduced. The system also provides a method to prevent the driver from operating incorrectly, reduces the driver's operation requirements, and ensures driving safety.

[0050] like Figure 1 It is shown that the automatic transmission hand-shift switch acquisition and control system of the present invention can be applied to one or more heavy-duty vehicles. The heavy-duty vehicles have pre-set or stored instructions and can automatically perform numerical calculations and / or information processing. Its hardware includes but is not limited to a shift knob, a shift combination handle, a signal acquisition controller, a TCU controller, a microprocessor, an application specific integrated circuit (ASIC), a programmable gate array (FPGA), a digital processor (DSP), an embedded device, etc.

[0051] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0052] The system includes: a shift knob, a shift combination handle, a signal acquisition controller and a TCU controller; the shift knob and the shift combination handle are respectively connected to the signal acquisition controller in communication; the signal acquisition controller is connected to the TCU controller in communication;

[0053] Exemplarily, the shift knob and the shift combination handle are respectively connected to the signal acquisition controller through hard wires; the signal acquisition controller is connected to the TCU controller through a CAN bus.

[0054] The shift knob includes: reverse gear creep mode Rm, reverse gear R, neutral gear N, forward gear D and forward gear creep Dm; the shift combination handle includes: A / M gear switch, upshift switch and downshift switch.

[0055] Based on the cooperation of the shift knob and the shift combination handle, multi-gear output can be achieved to meet the use requirements of heavy-duty vehicles.

[0056] The signal acquisition controller collects the high-level information of the shift knob and the high-level information of the shift combination handle respectively, parses the high-level information into TC messages, sends the corresponding shift information to the TCU controller through the TC messages, and the TCU controller executes the shift action.

[0057] It can be seen that the present invention forms 8 gears based on the combination of the shift knob and the shift combination handle, which effectively forms a multi-gear coordination. The present invention takes a high effective switch as an example, the signal acquisition controller collects the rising edge signal of the high effective switch, and sends the corresponding shift information to the TCU controller through the TC message, and the TCU controller realizes the shift.

[0058] As an embodiment of the present invention, the automatic transmission hand-held gear switch acquisition control in the system replaces the ordinary shift lever. The signal acquisition controller collects the driver's operation of the shift knob and the shift combination handle and sends the shift information to the TCU controller through the CAN message. At the same time, the driver's misoperation can be logically processed: when the driver turns the Rm / R / N / D / Dm shift knob while the message information is being sent, the signal acquisition controller will send the current shift information, and then send the shift information of the current position of the shift knob to ensure that the transmission gear position matches the shift knob position; when the driver operates the shift combination handle and the Rm / R / N / D / Dm shift knob at the same time, the shift information of the shift knob is sent first in order and then the shift information of the shift combination handle is sent to ensure orderliness and information integrity.

[0059] The present invention is also applicable to the case where the signal acquisition controller is shifting the shift knob when sending the shift information of the shift combination handle. Figure 2For example, the shift knob is currently in D gear, and it is turned to N gear once. The signal acquisition controller is sending neutral gear information, and it is suddenly turned to R gear. At this time, the neutral gear information is sent normally. When the sending is completed, the switch detection is performed. If it is detected that it is in R gear, the signal acquisition controller continues to send reverse gear information.

[0060] For the present invention, the shift knob is always in a gear position at any time, that is, there is always a high level at any time, and the three switches of the shift combination handle are self-reset switches, so the eight switches are required to recognize the rising edge signal of the high level, and if the high level signal is recognized, the shift information will be sent all the time. The TC message sent to the TCU control is to send a few frames of corresponding shift information only when the switch valid input is recognized, and the shift information must be sent completely and cannot be interrupted when sending. Invalid values ​​are sent all the time.

[0061] That is, the signal acquisition controller continuously obtains high-level information and sends it to the TCU controller in the form of TC messages. The TCU controller identifies the gear shifting information corresponding to the TC messages, executes the gear shifting operation, and prevents misoperation during the gear shifting process.

[0062] The present invention can continuously acquire the gear shift information, and execute the gear shift operation according to the high level of the gear shift information, so as to facilitate the operation of the driver and reduce the misoperation. The safety of driving the vehicle is effectively improved. The gear shift information can also be efficiently collected, stored, and processed, and the process monitoring can be realized based on the gear shift status to improve the gear shift efficiency and accuracy. The system can also timely detect the abnormal status of the gear shift knob and the gear shift combination handle, and issue an alarm to improve the safety of the driving process and reduce the risk of the driving process.

[0063] The following is an embodiment of the automatic transmission arm shift switch acquisition control method provided by the embodiment of the present disclosure. This method and the automatic transmission arm shift switch acquisition control system of the above-mentioned embodiments belong to the same inventive concept. For details not fully described in the embodiment of the automatic transmission arm shift switch acquisition control method, please refer to the above-mentioned embodiment of the automatic transmission arm shift switch acquisition control system.

[0064] In the method, when the signal acquisition controller receives that the shift knob is turned to the Rm gear, the signal acquisition controller parses the Rm gear into a reverse gear creep TC message and sends it to the TCU controller;

[0065] When the signal acquisition controller receives the signal that the shift knob is turned to the R gear, the signal acquisition controller interprets the R gear into a reverse gear TC message and sends it to the TCU controller;

[0066] When the signal acquisition controller receives the signal that the shift knob is turned to N gear, the signal acquisition controller interprets N gear into a neutral gear TC message and sends it to the TCU controller;

[0067] When the signal acquisition controller receives the signal that the shift knob is turned to the D gear, the signal acquisition controller parses the D gear into a forward TC message and sends it to the TCU controller;

[0068] When the signal acquisition controller receives the signal that the shift knob is turned to the Dm gear, the signal acquisition controller interprets the Dm gear into a forward gear creep TC message and sends it to the TCU controller;

[0069] When the signal acquisition controller receives the signal that the shift knob is turned to the Dm gear, the signal acquisition controller interprets the Dm gear into a forward gear creep TC message and sends it to the TCU controller;

[0070] When the signal acquisition controller receives the A / M switch selected by the shift combination handle, the signal acquisition controller interprets the A / M switch into an A / M mode switching TC message and sends it to the TCU controller;

[0071] When the signal acquisition controller receives the upward movement of the shift combination handle, the signal acquisition controller parses the upward movement information into a TC message for upshifting and sends it to the TCU controller;

[0072] When the signal acquisition controller receives the signal that the shift combination handle is pushed downward, the signal acquisition controller parses the downward push information into a downshift TC message and sends it to the TCU controller.

[0073] In the present invention, due to the characteristics of the shift knob, the driver may mistakenly shift multiple gears at once, or the driver may shift the shift knob when the signal acquisition controller is sending the shift information. However, once the signal acquisition controller sends the shift information, it must send the current information completely and cannot be interrupted, and all switches must recognize the rising edge. Therefore, the switch input during the process of sending the shift information will not be executed, which ultimately leads to a mismatch between the current gear position of the transmission and the current position of the shift knob, causing problems.

[0074] Each time the TC message sends the gear shift information, it is determined whether the currently sent gear shift information is consistent with the gear position information corresponding to the position of the gear knob. If they are consistent, it means that the gear shift knob was not turned during the process. If they are inconsistent, it means that the gear shift knob was turned again during the process of the signal acquisition controller sending the gear shift information.

[0075] If there is any inconsistency, it means that the shift knob was turned again during the process of sending the shift information in the TC message, and when the signal acquisition controller completes sending the shift information, the signal acquisition controller re-detects the high level state of the switch, determines the position of the shift knob and immediately sends the corresponding shift information. This process can be repeated until a consistency is detected.

[0076] When the level sent by the shift knob and the shift combination handle is an invalid value, the signal acquisition controller does not need to analyze and process.

[0077] In an embodiment of the present invention, since the shift knob and the shift combination handle are separate, the driver may operate the shift knob and the shift combination handle at the same time. In this case, the shift information of the shift knob needs to be sent first according to the priority order, and then the shift information of the shift combination handle needs to be sent. When the two switches input the rising edge signal at the same time, the signal acquisition controller directly sends the shift information corresponding to the shift knob input signal, and uses the RS register to latch the input signal of the shift combination handle. Then the signal acquisition controller continues to detect whether the current shift information has been sent. If it has not been completed, it continues to send it. If it has been completed, it reads the shift information in the RS register and sends the corresponding shift information to the TCU controller. If the driver operates the shift combination handle during the process of the signal acquisition controller sending the shift information of the shift knob, the RS register can also be used to latch the input information. This strategy also applies to the situation where the A / M and increase / decrease switches on the shift combination handle are operated at the same time, see Figure 3 .

[0078] In the embodiment of the present invention, when the shift knob is abnormal, an error message needs to be sent.

[0079] For example, Figure 4 As shown, during the operation of the shift knob, there must be only one gear switch in the high level state, so if two or more gear switches are in the high level state, it means that the shift knob is faulty. The shift combination handle is shifted upward to increase the gear and is shifted downward to decrease the gear, so if the shift switches are both high level, it means that the shift combination handle is faulty. When the fault occurs, the signal acquisition controller sends fault information instead of shift information. When the fault is eliminated, the normal shift information sending function is restored.

[0080] Furthermore, as a refinement and expansion of the specific implementation method of the above embodiment, in order to fully illustrate the specific implementation process of this embodiment, the method also aims at the problem that the current gear position of the transmission and the current position of the shift knob do not match when the shift knob is turned. There is another strategy to replace Figure 2 way.

[0081] The five switches on the shift knob are delayed in effectiveness, and the delay time is greater than the time it takes for the signal acquisition controller to send the shift information. That is, after the shift knob is turned, it must remain in the current position for a period of time before the input is considered valid. In this way, even if the shift knob is turned while the signal acquisition controller is sending the shift information, the signal acquisition controller has completed sending the shift information when the shift knob input is valid.

[0082] For example, when the signal acquisition controller is sending neutral information, the shift knob is turned to D gear. After a period of time, when the D gear input is considered valid, the signal acquisition controller is already sending an invalid value. The signal acquisition controller's transmission will not be interrupted and the D gear input can be executed normally. Figure 5 .

[0083] The signal acquisition controller only needs to send a few frames each time it sends the gear shift information, so the delay time mentioned above is in the millisecond level, and the delay is almost imperceptible to the user. Figure 5 The strategy program is simple to implement. Figure 2 The strategy response will be faster, but the final effect is almost the same.

[0084] The units and algorithm steps of each example described in the embodiments disclosed in the automatic transmission hand-gear switch acquisition control system and method provided by the present invention can be implemented by electronic hardware, computer software or a combination of the two. In order to clearly illustrate the interchangeability of hardware and software, the composition and steps of each example have been generally described in terms of function in the above description. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of the present invention.

[0085] In the automatic transmission hand-gear switch acquisition control system and method provided by the present invention, the computer program code for performing the operations disclosed herein can be written in one or more programming languages ​​or a combination thereof, and the above-mentioned programming languages ​​include but are not limited to object-oriented programming languages ​​- such as Java, Smalltalk, C++, and also include conventional procedural programming languages ​​- such as "C" language or similar programming languages. The program code can be executed completely on the user's computer, partially on the user's computer, as an independent software package, partially on the user's computer and partially on a remote computer, or completely on a remote computer or power server. In the case of a remote computer, the remote computer can be connected to the user's computer through any type of network - including a local area network (LAN) or a wide area network (WAN), or it can be connected to an external computer (exemplarily using an Internet service provider to connect through the Internet).

[0086] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An automatic transmission shift switch acquisition control system, characterized in that: include: Shift knob, shift combination handle, signal acquisition controller and TCU controller; The shift knob and the shift combination handle are respectively connected to the signal acquisition controller for communication; The signal acquisition controller is communicatively connected with the TCU controller; The signal acquisition controller collects high-level information of the shift knob and the high-level information of the shift combination handle respectively, parses the high-level information into TC messages, sends the corresponding shift information to the TCU controller through the TC messages, and the TCU controller executes the shift action; The shift knob includes: reverse creep mode Rm, reverse R, neutral N, forward D and forward creep Dm; The shift combination handle includes: A / M gear switch, upshift switch and downshift switch; The shift knob will be in a gear position at any time, and the gear position corresponds to a high level output; The signal acquisition controller continuously obtains high-level information and sends it to the TCU controller in the form of TC messages. The TCU controller identifies the gear shift information corresponding to the TC messages and executes the gear shift operation.

2. The automatic transmission shift switch acquisition and control system according to claim 1, characterized in that: The shift knob and the shift combination handle are respectively connected to the signal acquisition controller through hard wires for communication; The signal acquisition controller is connected to the TCU controller via the CAN bus.

3. The automatic transmission shift switch acquisition and control system according to claim 1, characterized in that: Each switch position of the shift combination handle is a self-resetting switch.

4. A method for collecting and controlling automatic transmission shift switch, characterized in that: The method adopts the automatic transmission hand-shift switch acquisition and control system according to any one of claims 1 to 3; the method comprises: When the TC message is sending the shift information each time, it is determined whether the currently sent shift information is consistent with the gear position information corresponding to the position of the gear knob. If they are consistent, it means that the gear knob has not been turned during the process. If they are inconsistent, it means that the gear knob has been turned during the TC message sending the shift information. When the TC message completes sending the shift information, the TCU controller re-detects the high level state of the switch, determines the position of the shift knob and immediately sends the corresponding shift information, and repeats the above process until a consistency is detected; When the TC message sends an invalid value, no judgment is made.

5. The automatic transmission shift switch acquisition control method according to claim 4, characterized in that: In the method, when the shift knob and the shift combination handle both output rising edge signals, the signal acquisition controller first sends the shift information corresponding to the shift knob, and at the same time uses the RS register to latch the input signal of the shift combination handle; The signal acquisition controller continuously detects whether the shift information of the shift knob has been sent; If the transmission is not completed, the shift information of the shift combination handle will continue to be latched into the RS register; If the transmission is completed, the gear shift information in the RS register is read and the corresponding gear shift information is sent to the TCU controller.

6. The automatic transmission shift switch acquisition control method according to claim 4, characterized in that: When the signal acquisition controller receives two or more shift switch rising edge signals from the shift knob, it indicates that the shift knob is faulty and an alarm is given through the vehicle instrument; If the up and down switches of the shift combination handle send out rising edge signals at the same time, it means that the shift combination handle is faulty and an alarm will be given through the vehicle instrument.

7. The automatic transmission shift switch acquisition control method according to claim 4, characterized in that: When the signal acquisition controller receives the signal that the shift knob is turned to the Rm gear, the signal acquisition controller interprets the Rm gear into a reverse gear creep TC message and sends it to the TCU controller; When the signal acquisition controller receives the signal that the shift knob is turned to the R gear, the signal acquisition controller interprets the R gear into a reverse gear TC message and sends it to the TCU controller; When the signal acquisition controller receives the signal that the shift knob is turned to N gear, the signal acquisition controller interprets N gear into a neutral gear TC message and sends it to the TCU controller; When the signal acquisition controller receives the signal that the shift knob is turned to the D gear, the signal acquisition controller parses the D gear into a forward TC message and sends it to the TCU controller; When the signal acquisition controller receives the signal that the shift knob is turned to the Dm gear, the signal acquisition controller interprets the Dm gear into a forward gear creep TC message and sends it to the TCU controller; When the signal acquisition controller receives the A / M switch selected by the shift combination handle, the signal acquisition controller interprets the A / M switch into an A / M mode switching TC message and sends it to the TCU controller; When the signal acquisition controller receives the upward movement of the shift combination handle, the signal acquisition controller parses the upward movement information into a TC message for upshifting and sends it to the TCU controller; When the signal acquisition controller receives the signal that the shift combination handle is pushed downward, the signal acquisition controller parses the downward push information into a downshift TC message and sends it to the TCU controller.

8. A heavy-duty vehicle, characterized in that: It comprises the automatic transmission hand-shift switch acquisition and control system as described in any one of claims 1 to 3.

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