An electronic brake control system driven by dual hydraulic motors

Abstract

The present invention discloses an electronic brake control system driven by dual hydraulic motors, which relates to the field of hydraulic brake technology. It solves the technical problem that in actual applications, because the driving parts inside the hydraulic motors are all in an operating state, there will be some deviation in the data, resulting in poor overall braking effect. According to the received braking data parameters, and then according to the built-in conversion factors, the required specific driving force parameters are obtained, the specific driving force parameters are compared with the bundled data packets stored in the storage unit, the corresponding linear equations are obtained, the corresponding processing parameters are obtained, and the processing parameters are transmitted to the control unit for adaptive control processing, and the braking data in the actual application scenario are stopped. In this way, the corresponding braking parameters can be quickly given by the dual hydraulic motors, and the internal accessories of the dual hydraulic motors are fully utilized. There will be no deviation in the braking parameters, and a better braking effect can be achieved.

Description

Technical Field

[0001] The present invention belongs to the technical field of hydraulic brakes, and in particular is an electronic brake control system driven by dual hydraulic motors. Background Art

[0002] A hydraulic motor is a hydraulic motor, also known as an oil motor. With the development of the times, dual hydraulic motors are used to drive the power for braking.

[0003] The invention with patent publication number CN103950445A discloses a hydraulic dual-motor driven electronic hydraulic brake system, including: a brake pedal; a brake master cylinder; a secondary master cylinder; a fluid reservoir; a pedal displacement sensor; a hydraulic pressure sensor; an electronic control unit ECU; a first electronically controlled linear motion module and a second electronically controlled linear motion module, for actively controlling the hydraulic braking force and pedal force of the system; an electronic stability control module ESC, for adjusting the hydraulic braking force of each wheel cylinder; a tee, for connecting the hydraulic pipeline between the brake master cylinder and the secondary master cylinder and the inlet of the electronic stability control module ESC. This invention can use the driver's pedal force to build pressure, and while realizing active pedal force control, it eliminates the need for a complex pedal force simulator, ensures the brake pedal feel, can correctly reflect the driver's braking intention, realizes active hydraulic pressure control, meets the vehicle's braking requirements, and can maximize brake energy recovery, with precise control and fast response speed.

[0004] When distributing hydraulic power, the specific braking control system adjusts the hydraulic speed according to the actual braking parameters, thereby changing the driving parameters of the dual hydraulic motors. The vehicle is braked by conversion through the changed driving parameters. However, this braking method will cause slight deviations in the data in actual applications because the driving parts inside the hydraulic motor are all in operation, resulting in poor overall braking effect. Summary of the Invention

[0005] The present invention aims to solve at least one of the technical problems existing in the prior art; to this end, the present invention proposes an electronic brake control system driven by a dual hydraulic motor, which is used to solve the technical problem that in actual applications, because the driving parts inside the hydraulic motor are all in operation, there will be some deviations in the data, resulting in poor overall braking effect.

[0006] To achieve the above-mentioned object, an embodiment of a first aspect of the present invention provides an electronic brake control system driven by dual hydraulic motors, comprising a preset data input terminal, a brake control center, and a brake data acquisition terminal;

[0007] The brake control center includes a preset data processing unit, a power distribution unit, a control unit and a storage unit;

[0008] The preset data input terminal is used to input the dual hydraulic motor data obtained from the test, wherein the input dual hydraulic motor data is transmitted to the preset data processing unit, wherein the dual hydraulic motor data includes hydraulic speed parameters, the number of built-in distribution drive components, and the generated driving force parameters;

[0009] The preset data processing unit determines the hydraulic rate parameter based on the received dual hydraulic motor data, then gradually increases the number of built-in distribution drive components, and obtains the corresponding driving force parameter according to the corresponding number of built-in distribution drive components, then sets the driving range according to the driving force parameter, adjusts the hydraulic rate parameter, obtains the guiding equation between each set of driving force parameters, bundles the multiple sets of parameters into a data packet, and stores them in the storage unit;

[0010] The braking data acquisition terminal acquires the braking data parameters required in the actual application scenario and transmits the acquired braking data parameters to the braking control center;

[0011] The power distribution unit obtains the required specific driving force parameters based on the received braking data parameters and the built-in conversion factors, compares the specific driving force parameters with the bundled data packets stored in the storage unit, obtains the corresponding linear equations, obtains the corresponding processing parameters, and transmits the processing parameters to the control unit for adaptive control processing.

[0012] Preferably, the specific manner in which the preset data processing unit obtains the steering equation between each set of driving force parameters is:

[0013] S1. Determine a set of commonly used hydraulic rate parameters and mark them as VC, and then mark the number of built-in distribution drive components as G i , where i represents different numbers, where i = 1, 2, ..., n, and the driving force parameter is marked as QD i ;

[0014] S2, the number of built-in distribution drive components G i and driving force parameter QD i Match and bundle in sequence, perform sum and mean processing on the first set of driving force parameters QD1 and the second set of driving force parameters QD2, and obtain the mean value JZ1 between the two sets of driving force parameters;

[0015] S3. Determine the initial built-in distribution driver G1 and the corresponding driving force parameter QD1, extract the corresponding hydraulic velocity parameter VC, and then obtain the velocity parameter VT after the driving force parameter increases from QD1 to the mean value JZ1, where VC corresponds to QD1 and VT corresponds to JZ1. Substitute these two sets of parameters into Y = KX + B for measurement, where VC and VT are both substituted into X, and JZ1 and QD1 are both substituted into Y, to obtain the first set of linear guide equations Y = K1X + B1;

[0016] S4. Determine the second set of built-in distribution drive elements G2 and the corresponding driving force parameter QD2, extract the corresponding hydraulic velocity parameter VC, and obtain the velocity parameter VF after the driving force parameter decreases from QD2 to the mean value JZ1. Substitute the same method as in step S3 to obtain the second set of linear guide equations Y=K2X+B2 for the driving force interval.

[0017] S5. Obtain the linear guide equation between the second set of driving force parameters QD2 and the third set of driving force parameters QD3. Use the same method as steps S3-S4 to obtain each subsequent set of linear equations in turn. After the acquisition is completed, use the corresponding driving force parameters as the guide interval and then compare it with the internal linear guide equation Y=K o X+B0 are bundled, where o=1, 2, ..., m, to obtain a plurality of bundled data packets, and each bundled data packet is sequentially transmitted to the storage unit for storage.

[0018] Preferably, the power distribution unit obtains the processing parameters in the following specific manner:

[0019] The obtained braking data parameter is marked as ZDS, and the specific driving force parameter QDS is obtained by using QDS=ZDS×C1, where C1 is a preset conversion factor, and the specific value is determined by the operator based on experience;

[0020] The specific driving force parameter QDS is extracted from the bundled data package stored in the storage unit, and the driving force parameter QD i Extract the corresponding driving force parameter QDS and compare the driving force parameter QDS with the two sets of driving force parameters QD i and QD i-1 The mean value JZ n-1 Make a comparison;

[0021] When QDS<JZ n-1 When the speed-up signal is generated, the linear guidance equation Y=K of the corresponding stage is obtained. o X+B0, using QDS=K o X+B0 obtains the hydraulic speed increase parameter X1, and the corresponding hydraulic speed increase parameter X, the speed-up signal and the driving force parameter QDi-1 Transmitted to the control unit;

[0022] When QDS ≥ JZ n-1 When the deceleration signal is generated, the linear guidance equation Y=K of the corresponding stage is obtained. o X+B0, using QDS=K o X+B0 obtains the hydraulic rate reduction parameter X2, and the corresponding hydraulic rate reduction parameter X2, deceleration signal and driving force parameter QD i Transmitted to the control unit.

[0023] Preferably, the control unit controls the driving components inside the dual hydraulic motors according to the received speed-up signal and deceleration signal, and the specific control method is:

[0024] When the speed-up signal is received, the corresponding driving force parameter QD i-1 , the number of built-in distribution drive components is determined to be i-1, and then the hydraulic rate increase parameter X1 is processed. According to the specific value of X1, the corresponding hydraulic pressure value is increased to complete the braking process;

[0025] When a deceleration signal is received, the corresponding driving force parameter QD i , the number of built-in distribution drive components is determined to be i, and then the hydraulic rate reduction parameter X2 is processed. According to the specific value of X2, the corresponding hydraulic pressure value is reduced to complete the braking process in the actual application scenario.

[0026] Preferably, the storage unit stores multiple groups of bundled data packets generated by the preset data processing unit.

[0027] Compared with the prior art, the present invention has the following advantages: according to the received dual hydraulic motor data, the corresponding hydraulic rate parameters are determined, the number of built-in distribution drive components is gradually increased, and the corresponding driving force parameters are obtained according to the corresponding number of built-in distribution drive components. The driving range is then set according to the driving force parameters, and the hydraulic rate parameters are adjusted therefrom. The guiding equation between each set of driving force parameters is obtained, and a plurality of bundled data packets are generated, and the plurality of bundled data packets are stored in a storage unit.

[0028] According to the received braking data parameters and the built-in conversion factors, the required specific driving force parameters are obtained, and the specific driving force parameters are compared with the bundled data packets stored in the storage unit to obtain the corresponding linear equations, and the corresponding processing parameters are obtained. The processing parameters are transmitted to the control unit for adaptive control processing, and the braking data in the actual application scenario is stopped. In this way, the corresponding braking parameters can be quickly given through the dual hydraulic motors, and the internal accessories of the dual hydraulic motors can be fully utilized. There will be no deviation in the braking parameters, and a better braking effect can be achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 This is a schematic diagram of the principle framework of the present invention;

[0030] Figure 2 Schematic diagram of the decomposition of driving force parameters of the present invention. DETAILED DESCRIPTION

[0031] The technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0032] See also Figure 1 , the present application provides an electronic brake control system driven by a dual hydraulic motor, comprising a preset data input terminal, a brake control center, and a brake data acquisition terminal;

[0033] The preset data output terminal is electrically connected to the brake control center input terminal, and the brake data acquisition terminal output terminal is electrically connected to the brake control center input terminal;

[0034] The brake control center includes a preset data processing unit, a power distribution unit, a control unit and a storage unit;

[0035] The output end of the preset data processing unit is electrically connected to the input end of the power distribution unit, the output end of the power distribution unit is electrically connected to the input end of the control unit, the output end of the preset data processing unit is electrically connected to the input end of the storage unit, and the power distribution unit and the storage unit are bidirectionally connected;

[0036] The preset data input terminal is used to input the dual hydraulic motor data obtained from the test, wherein the input dual hydraulic motor data is transmitted to the preset data processing unit, wherein the dual hydraulic motor data includes hydraulic speed parameters, the number of built-in distribution drive components, and the generated driving force parameters;

[0037] The preset data processing unit determines the corresponding hydraulic rate parameter based on the received dual hydraulic motor data, and then gradually increases the number of built-in distribution drive components, and obtains the corresponding driving force parameter based on the corresponding number of built-in distribution drive components. The driving range is then set based on the driving force parameter, and the hydraulic rate parameter is adjusted therefrom to obtain the guiding equation between each set of driving force parameters. The specific processing method is as follows:

[0038] S1. Determine a set of commonly used hydraulic rate parameters and mark them as VC, and then mark the number of built-in distribution drive components as G i , where i represents different numbers, where i = 1, 2, ..., n, and the driving force parameter is marked as QD i ;

[0039] S2, the number of built-in distribution drive components G i and driving force parameter QD i Match and bundle in sequence, perform sum and mean processing on the first set of driving force parameters QD1 and the second set of driving force parameters QD2, and obtain the mean value JZ1 between the two sets of driving force parameters;

[0040] S3. Determine the initial built-in distribution drive G1 (here the number of drive components is 1) and the corresponding driving force parameter QD1, and extract the corresponding hydraulic rate parameter VC, and then obtain the rate parameter VT after the driving force parameter is increased from QD1 to the mean value JZ1, where VC corresponds to QD1 and VT corresponds to JZ1. Substitute the two sets of parameters into Y=KX+B for measurement, where VC and VT are both substituted into X, and JZ1 and QD1 are both substituted into Y, to obtain the first set of linear guide equations Y=K1X+B1 (which can be combined with Figure 2 To understand the content shown, when a dual hydraulic motor is driven, the internal hydraulic drive components will be set and adjusted. Some or all of them can be turned on. Therefore, the parameters of each group of hydraulic drive components are classified and calculated. After the driving force is determined, the driving force generated is adjusted by adjusting the hydraulic rate, which can also be understood as hydraulic pressure).

[0041] S4. Determine the second set of internal distribution drive elements G2 (in this case, the number of drive elements is two) and the corresponding driving force parameter QD2, and extract the corresponding hydraulic rate parameter VC. Obtain the rate parameter VF after the driving force parameter decreases from QD2 to the mean value JZ1, and use the same substitution method as in step S3 to obtain the second set of linear guide equations Y=K2X+B2 belonging to this driving force interval;

[0042] S5. Obtain the linear guide equation between the second set of driving force parameters QD2 and the third set of driving force parameters QD3. Use the same method as steps S3-S4 to obtain each subsequent set of linear equations in turn. After the acquisition is completed, use the corresponding driving force parameters as the guide interval and then compare it with the internal linear guide equation Y=K o X+B0 are bundled, where o=1, 2, ..., m, to obtain a plurality of bundled data packets, and each bundled data packet is sequentially transmitted to the storage unit for storage.

[0043] The braking data acquisition terminal acquires the braking data parameters required in the actual application scenario and transmits the acquired braking data parameters to the braking control center;

[0044] The power distribution unit obtains the required specific driving force parameters based on the received braking data parameters and the internal conversion factor, compares the specific driving force parameters with the bundled data packets stored in the storage unit, obtains the corresponding linear equation, obtains the corresponding processing parameters, and transmits the processing parameters to the control unit for adaptive control processing. The specific method of performing the comparison processing is as follows:

[0045] The obtained braking data parameter is marked as ZDS, and the specific driving force parameter QDS is obtained by using QDS=ZDS×C1, where C1 is a preset conversion factor, and the specific value is determined by the operator based on experience;

[0046] The specific driving force parameter QDS is extracted from the bundled data package stored in the storage unit, and the driving force parameter QD i Extract the corresponding driving force parameter QDS and compare the driving force parameter QDS with the two sets of driving force parameters QD i and QD i-1 The mean value JZ n-1 Make a comparison;

[0047] When QDS<JZ n-1 When the speed-up signal is generated, the linear guidance equation Y=K of the corresponding stage is obtained. o X+B0, using QDS=K o X+B0 obtains the hydraulic speed increase parameter X1, and the corresponding hydraulic speed increase parameter X, the speed-up signal and the driving force parameter QD i-1 Transmitted to the control unit;

[0048] When QDS ≥ JZ n-1 When the deceleration signal is generated, the linear guidance equation Y=K of the corresponding stage is obtained. o X+B0, using QDS=K oX+B0 obtains the hydraulic rate reduction parameter X2, and the corresponding hydraulic rate reduction parameter X2, deceleration signal and driving force parameter QD i Transmitted to the control unit.

[0049] The control unit controls the driving components inside the dual hydraulic motors according to the received acceleration signal and deceleration signal. The specific control method is as follows:

[0050] When the speed-up signal is received, the corresponding driving force parameter QD i-1 , the number of built-in distribution drive components is determined to be i-1, and then the hydraulic rate increase parameter X1 is processed. According to the specific value of X1, the corresponding hydraulic pressure value is increased. The specific conversion method is determined by the operator to complete the braking process;

[0051] When a deceleration signal is received, the corresponding driving force parameter QD i , the number of built-in distribution drive components is determined to be i, and then the hydraulic rate reduction parameter X2 is processed. According to the specific value of X2, the corresponding hydraulic pressure value is reduced. The specific conversion method is determined by the operator to complete the braking processing in the actual application scenario.

[0052] Some of the data in the above formula are calculated by removing the dimensions and taking their numerical values. The formula is a formula that is closest to the actual situation obtained by software simulation of a large amount of collected data; the preset parameters and preset thresholds in the formula are set by technical personnel in this field according to actual conditions or obtained through simulation of a large amount of data.

[0053] The working principle of the present invention is as follows: the corresponding hydraulic rate parameters are determined in advance based on the received dual hydraulic motor data, and then the number of built-in distribution drive components is gradually increased. The corresponding driving force parameters are obtained based on the corresponding number of built-in distribution drive components. The driving range is then set based on the driving force parameters, and the hydraulic rate parameters are adjusted accordingly. The guiding equation between each set of driving force parameters is obtained, and several bundled data packets are generated and stored in a storage unit.

[0054] Then, based on the received braking data parameters and the built-in conversion factors, the required specific driving force parameters are obtained, and the specific driving force parameters are compared with the bundled data packets stored in the storage unit to obtain the corresponding linear equations, obtain the corresponding processing parameters, and transmit the processing parameters to the control unit for adaptive control processing, and perform braking processing on the braking data in the actual application scenario. In this way, the corresponding braking parameters can be quickly given by the dual hydraulic motors, and the internal accessories of the dual hydraulic motors can be fully utilized. There will be no deviation in the braking parameters, and a better braking effect can be achieved.

[0055] The above embodiments are only used to illustrate the technical method of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical method of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical method of the present invention.

Claims

1. An electronic brake control system driven by dual hydraulic motors, characterized in that: It includes a preset data input terminal, a brake control center, and a brake data acquisition terminal; The brake control center includes a preset data processing unit, a power distribution unit, a control unit and a storage unit; The preset data input terminal is used to input the dual hydraulic motor data obtained from the test, wherein the input dual hydraulic motor data is transmitted to the preset data processing unit, wherein the dual hydraulic motor data includes hydraulic speed parameters, the number of built-in distribution drive components, and the generated driving force parameters; The preset data processing unit determines the hydraulic rate parameter based on the received dual hydraulic motor data, then gradually increases the number of built-in distribution drive components, and obtains the corresponding driving force parameter according to the corresponding number of built-in distribution drive components, then sets the driving range according to the driving force parameter, adjusts the hydraulic rate parameter, obtains the guiding equation between each set of driving force parameters, bundles the multiple sets of parameters into a data packet, and stores them in the storage unit; The braking data acquisition terminal acquires the braking data parameters required in the actual application scenario and transmits the acquired braking data parameters to the braking control center; The power distribution unit obtains the required specific driving force parameters based on the received braking data parameters and the internal conversion factors, compares the specific driving force parameters with the bundled data packets stored in the storage unit, obtains the corresponding linear equations, obtains the corresponding processing parameters, and transmits the processing parameters to the control unit for adaptive control processing; The specific method for the preset data processing unit to obtain the steering equation between each set of driving force parameters is: S1. Determine a set of commonly used hydraulic rate parameters and label them as VC, then label the number of built-in distribution drive components as Gi, where i represents a different number, where i=1, 2, ..., n, and label the driving force parameter as QDi; S2. Match and bundle the number of built-in distribution driving components Gi and the driving force parameters QDi in sequence, and perform sum and average processing on the first group of driving force parameters QD1 and the second group of driving force parameters QD2 to obtain the mean value JZ1 between the two groups of driving force parameters; S3. Determine the initial built-in distribution driver G1 and the corresponding driving force parameter QD1, extract the corresponding hydraulic velocity parameter VC, and then obtain the velocity parameter VT after the driving force parameter increases from QD1 to the mean value JZ1, where VC corresponds to QD1 and VT corresponds to JZ1. Substitute these two sets of parameters into Y=KX+B for measurement, where VC and VT are both substituted into X, and JZ1 and QD1 are both substituted into Y, to obtain the first set of linear guide equations Y=K1X+B1; S4. Determine the second set of built-in distribution drive elements G2 and the corresponding driving force parameter QD2, extract the corresponding hydraulic velocity parameter VC, and obtain the velocity parameter VF after the driving force parameter decreases from QD2 to the mean value JZ1. Substitute the same method as in step S3 to obtain the second set of linear guide equations Y=K2X+B2 for this driving force interval. S5. Obtain the linear guide equation between the second set of driving force parameters QD2 and the third set of driving force parameters QD3. Use the same method as steps S3-S4 to obtain each subsequent set of linear equations in turn. After the acquisition is completed, use the corresponding driving force parameters as the guide interval and then bundle them with the internal linear guide equation Y=KoX+B0, where o=1, 2,..., m, to obtain several groups of bundled data packets, and transfer each group of bundled data packets to the storage unit for storage in turn.

2. The electronic brake control system driven by dual hydraulic motors according to claim 1, characterized in that: The specific method for the power distribution unit to obtain the processing parameters is as follows: The obtained braking data parameter is marked as ZDS, and the specific driving force parameter QDS is obtained by using QDS=ZDS×C1, where C1 is a preset conversion factor, and the specific value is determined by the operator based on experience; Extracting the specific driving force parameter QDS from the bundled data packet stored in the storage unit, extracting the corresponding driving force parameter QDS through the driving force parameter QDi, and comparing the driving force parameter QDS with the average value JZn-1 between the two sets of driving force parameters QDi and QDi-1; When QDS < JZn-1, an acceleration signal is generated, and the linear guidance equation Y = KoX + B0 of the corresponding stage is obtained. The hydraulic rate increase parameter X1 is obtained by using QDS = KoX + B0, and the corresponding hydraulic rate increase parameter X, the acceleration signal and the driving force parameter QDi-1 are transmitted to the control unit; When QDS≥JZn-1, a deceleration signal is generated, and the linear guidance equation Y=KoX+B0 of the corresponding stage is obtained. The hydraulic rate reduction parameter X2 is obtained using QDS=KoX+B0, and the corresponding hydraulic rate reduction parameter X2, deceleration signal and driving force parameter QDi are transmitted to the control unit.

3. The electronic brake control system driven by dual hydraulic motors according to claim 2, characterized in that: The control unit controls the driving components inside the dual hydraulic motors according to the received acceleration signal and deceleration signal. The specific control method is as follows: When the acceleration signal is received, the number of built-in distribution drive components is determined to be i-1 according to the corresponding driving force parameter QDi-1, and then the hydraulic rate increase parameter X1 is processed. According to the specific value of X1, the corresponding hydraulic pressure value is increased to complete the braking process; When a deceleration signal is received, the number of built-in distribution drive components is determined to be i according to the corresponding driving force parameter QDi, and then the hydraulic rate reduction parameter X2 is processed. According to the specific value of X2, the corresponding hydraulic pressure value is reduced to complete the braking processing in the actual application scenario.

4. The electronic brake control system driven by dual hydraulic motors according to claim 2, characterized in that: The storage unit stores the multiple groups of bundled data packets generated by the preset data processing unit.

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