CN115675101A - New energy heavy truck sliding feedback torque adjustment control method - Google Patents
New energy heavy truck sliding feedback torque adjustment control method Download PDFInfo
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- CN115675101A CN115675101A CN202211653182.3A CN202211653182A CN115675101A CN 115675101 A CN115675101 A CN 115675101A CN 202211653182 A CN202211653182 A CN 202211653182A CN 115675101 A CN115675101 A CN 115675101A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
The invention discloses a new energy heavy truck sliding feedback torque regulation control method, and related hardware comprises a whole vehicle controller, a regulation control unit, an accelerator pedal signal detection unit, a vehicle speed signal detection unit, a motor controller and a driving motor; the whole vehicle controller is respectively in communication connection with the adjusting control unit, the accelerator pedal signal detection unit, the vehicle speed signal detection unit and the motor controller, and the motor controller is electrically connected with the driving motor; the beneficial technical effects of the invention are as follows: the scheme enables a driver to actively adjust the sliding feedback torque according to the driving habit of the driver and the current conditions of the vehicle and the road.
Description
Technical Field
The invention relates to a new energy automobile sliding feedback technology, in particular to a new energy heavy truck sliding feedback torque adjusting and controlling method.
Background
The sliding energy feedback function means that the aim of energy recovery is fulfilled by controlling the negative torque of the motor after a driver looses an accelerator pedal in the running process of the vehicle. At present, in a common coasting energy feedback function strategy, the magnitude of the coasting feedback target torque is generally adjusted only by referring to a vehicle speed condition, and under the control strategy, a driver cannot adjust the feedback target torque according to load conditions (light load, medium load and heavy load), vehicle application scenes (level road and downhill) and driving habits, so that the driving performance and the driving experience of a vehicle are influenced.
Disclosure of Invention
Aiming at the problems in the background art, the invention provides a new energy heavy truck sliding feedback torque regulation control method, and related hardware comprises a whole vehicle controller, a regulation control unit, an accelerator pedal signal detection unit, a vehicle speed signal detection unit, a motor controller and a driving motor;
the whole vehicle controller is respectively in communication connection with the adjusting control unit, the accelerator pedal signal detection unit, the vehicle speed signal detection unit and the motor controller, and the motor controller is electrically connected with the driving motor;
the method is characterized in that: the new energy heavy truck sliding feedback torque regulation control method comprises the following steps:
the adjusting control unit comprises a function triggering button, a function closing button, a size adjusting button and a size adjusting button;
a driver activates a sliding feedback torque adjusting function by operating a function trigger button;
after the sliding feedback torque adjusting function is activated, a driver can control the adjusting control unit to output an adjusting signal to the whole vehicle controller by operating the increasing button or the decreasing button; the adjusting signals comprise an increase signal and a decrease signal, the increase button corresponds to the increase signal, and the decrease button corresponds to the decrease signal; the adjustment quantity of the large signal and the small signal is a percentage value;
the vehicle speed signal detection unit continuously outputs a detection signal to the vehicle controller, and the vehicle controller performs table lookup according to the detection signal of the vehicle speed signal detection unit to obtain sliding feedback Map torque corresponding to the current vehicle speed;
after receiving the adjusting signal, the vehicle control unit calculates the sliding feedback target torque in real time according to the sliding feedback Map torque and the adjusting signal:
coasting feedback target torque = coasting feedback Map torque × adjustment signal
The accelerator pedal signal detection unit continuously outputs a detection signal to the vehicle controller, the vehicle controller identifies the accelerator opening according to the detection signal of the accelerator pedal signal detection unit, if the accelerator opening is not 0, the vehicle controller closes the sliding energy feedback function, and if the accelerator opening is 0, the vehicle controller activates the sliding energy feedback function;
when the sliding energy feedback function is activated, the whole vehicle controller sends the sliding feedback target torque to the motor controller; the motor controller controls the running state of the driving motor according to the sliding feedback target torque;
the driver can turn off the coasting feedback torque adjustment function through the function off button.
By adopting the scheme, the driver can actively adjust the sliding feedback torque according to different vehicle load conditions, different vehicle application scenes and different driving habits, so that the vehicle can adapt to the driving habits of different drivers, and the driving performance requirements of the vehicle under different conditions are met.
Preferably, when the driver closes the sliding feedback torque adjusting function through the function closing button, the adjusting control unit stores the current value of the adjusting signal; when the sliding feedback torque adjusting function is activated again, the adjusting control unit generates a corresponding adjusting signal according to the stored numerical value and outputs the adjusting signal to the whole vehicle controller. After the sliding feedback torque adjusting device has the storage function, the use convenience of the sliding feedback torque adjusting function can be further improved, and a driver does not need to frequently perform adjusting operation.
Preferably, when the coasting feedback torque adjustment function is activated, if the driver does not operate the adjustment control unit within a set time, the adjustment control unit is automatically turned off after a time-out. The automatic closing function can prevent the driver from forgetting to close the adjusting control unit; in specific implementation, the time can be set to 30 minutes or 1 hour, and can also be set by the driver.
Preferably, the step distance of the up-regulation signal and the down-regulation signal is 5%; the maximum value of the adjustment signal is 100% and the minimum value of the adjustment signal is 0.
Preferably, the adjusting control unit is in communication connection with the vehicle control unit through a steering wheel controller, and the steering wheel controller transmits the adjusting signal output by the adjusting control unit to the vehicle control unit. For convenience of operation, the corresponding buttons of the adjusting control unit can be arranged on the steering wheel, so that the adjusting control unit can be connected with the vehicle control unit through the steering wheel controller.
When the method is concretely implemented, the vehicle control unit can be in communication connection with a display instrument, the vehicle control unit sends the percentage values of the sliding feedback target torque and the sliding feedback Map torque to the display instrument, the percentage values are displayed by the display instrument, and a driver can know the current parameters by observing the display instrument.
The beneficial technical effects of the invention are as follows: the scheme enables a driver to actively adjust the sliding feedback torque according to the driving habit of the driver and the current conditions of the vehicle and the road.
Drawings
FIG. 1 is an electrical schematic of the present invention;
the names corresponding to each mark in the figure are respectively: the vehicle control system comprises a vehicle control unit 1, an adjusting control unit 2, an accelerator pedal signal detection unit 3, a vehicle speed signal detection unit 4, a motor controller 5 and a driving motor 6.
Detailed Description
A new energy heavy truck sliding feedback torque adjustment control method relates to hardware comprising a whole vehicle controller 1, an adjustment control unit 2, an accelerator pedal signal detection unit 3, a vehicle speed signal detection unit 4, a motor controller 5 and a driving motor 6;
the vehicle control unit 1 is respectively in communication connection with the adjusting control unit 2, the accelerator pedal signal detection unit 3, the vehicle speed signal detection unit 4 and the motor controller 5, and the motor controller 5 is electrically connected with the driving motor 6;
the innovation is as follows: the new energy heavy truck sliding feedback torque regulation control method comprises the following steps:
the adjusting control unit 2 comprises a function trigger button, a function closing button, an increasing button and a decreasing button;
a driver activates a sliding feedback torque adjusting function by operating a function trigger button;
after the sliding feedback torque adjusting function is activated, a driver can control the adjusting control unit 2 to output an adjusting signal to the vehicle control unit 1 by operating an increase button or a decrease button; the adjusting signals comprise an increase signal and a decrease signal, the increase button corresponds to the increase signal, and the decrease button corresponds to the decrease signal; the adjustment quantity of the large signal and the small signal is a percentage value;
the vehicle speed signal detection unit 4 continuously outputs a detection signal to the vehicle control unit 1, and the vehicle control unit 1 performs table lookup according to the detection signal of the vehicle speed signal detection unit 4 to obtain a sliding feedback Map torque corresponding to the current vehicle speed;
after receiving the adjusting signal, the vehicle control unit 1 calculates the sliding feedback target torque in real time according to the sliding feedback Map torque and the adjusting signal:
coasting feedback target torque = coasting feedback Map torque × adjustment signal
The accelerator pedal signal detection unit 3 continuously outputs a detection signal to the vehicle control unit 1, the vehicle control unit 1 identifies the accelerator opening according to the detection signal of the accelerator pedal signal detection unit 3, if the accelerator opening is not 0, the vehicle control unit 1 closes the sliding energy feedback function, and if the accelerator opening is 0, the vehicle control unit 1 activates the sliding energy feedback function;
when the sliding energy feedback function is activated, the vehicle control unit 1 sends the sliding feedback target torque to the motor controller 5; the motor controller 5 controls the running state of the driving motor 6 according to the sliding feedback target torque;
the driver can turn off the coasting feedback torque adjustment function through the function off button.
Further, when the driver closes the sliding feedback torque adjusting function through the function closing button, the adjusting control unit 2 stores the current numerical value of the adjusting signal; when the coasting feedback torque adjustment function is activated again, the adjustment control unit 2 generates a corresponding adjustment signal according to the stored value, and outputs the adjustment signal to the vehicle control unit 1.
Further, when the coasting feedback torque adjustment function is activated, if the driver does not operate the adjustment control unit 2 within a set time, the adjustment control unit 2 is automatically turned off after a time-out.
Further, the adjusting step distance of the up-signal and the down-signal is 5%; the maximum value of the adjustment signal is 100% and the minimum value of the adjustment signal is 0.
Further, the adjusting control unit 2 is in communication connection with the vehicle control unit 1 through a steering wheel controller, and the steering wheel controller transmits the adjusting signal output by the adjusting control unit 2 to the vehicle control unit 1.
Example (b):
1. during level road sliding, a driver looses an accelerator, the vehicle enters a sliding mode, the vehicle controller 1 activates a sliding energy feedback function, and in the process, if the driver feels that the sliding vehicle speed is reduced too fast or the sliding distance is too short, the driver can activate a sliding feedback torque adjusting function to reduce the sliding feedback target torque until the optimal driving comfort performance required by the driver is achieved.
2. When the vehicle runs downhill, the driver looses the accelerator, the vehicle enters a sliding mode, and the vehicle control unit 1 activates the sliding energy feedback function.
Claims (5)
1. A new energy heavy truck sliding feedback torque adjustment control method relates to hardware comprising a whole vehicle controller (1), an adjustment control unit (2), an accelerator pedal signal detection unit (3), a vehicle speed signal detection unit (4), a motor controller (5) and a driving motor (6);
the whole vehicle controller (1) is respectively in communication connection with the adjusting control unit (2), the accelerator pedal signal detection unit (3), the vehicle speed signal detection unit (4) and the motor controller (5), and the motor controller (5) is electrically connected with the driving motor (6);
the method is characterized in that: the new energy heavy truck sliding feedback torque regulation control method comprises the following steps:
the adjusting control unit (2) comprises a function trigger button, a function closing button, an enlarging button and a reducing button;
a driver activates a sliding feedback torque adjusting function by operating a function trigger button;
after the sliding feedback torque adjusting function is activated, a driver can control the adjusting control unit (2) to output an adjusting signal to the whole vehicle controller (1) by operating the turn-up button or the turn-down button; the adjusting signals comprise an increase signal and a decrease signal, the increase button corresponds to the increase signal, and the decrease button corresponds to the decrease signal; the adjustment quantity of the large signal and the small signal is a percentage value;
the vehicle speed signal detection unit (4) continuously outputs a detection signal to the vehicle control unit (1), and the vehicle control unit (1) performs table lookup according to the detection signal of the vehicle speed signal detection unit (4) to obtain sliding feedback Map torque corresponding to the current vehicle speed;
after receiving the adjusting signal, the vehicle control unit (1) calculates the sliding feedback target torque in real time according to the sliding feedback Map torque and the adjusting signal:
coasting feedback target torque = coasting feedback Map torque × adjustment signal
The accelerator pedal signal detection unit (3) continuously outputs a detection signal to the vehicle control unit (1), the vehicle control unit (1) identifies the accelerator opening according to the detection signal of the accelerator pedal signal detection unit (3), if the accelerator opening is not 0, the vehicle control unit (1) closes the sliding energy feedback function, and if the accelerator opening is 0, the vehicle control unit (1) activates the sliding energy feedback function;
when the sliding energy feedback function is activated, the vehicle control unit (1) sends the sliding feedback target torque to the motor controller (5); the motor controller (5) controls the running state of the driving motor (6) according to the sliding feedback target torque;
the driver can turn off the coasting feedback torque adjustment function through the function off button.
2. The method of claim 1, wherein the method further comprises: when the driver closes the sliding feedback torque adjusting function through the function closing button, the adjusting control unit (2) stores the current numerical value of the adjusting signal; when the sliding feedback torque adjusting function is activated again, the adjusting control unit (2) generates a corresponding adjusting signal according to the stored numerical value and outputs the adjusting signal to the whole vehicle controller (1).
3. The new-energy heavy-duty truck coasting feedback torque adjustment control method of claim 2, wherein: when the coasting feedback torque adjusting function is activated, if the driver does not operate the adjusting control unit (2) within the set time, the adjusting control unit (2) is automatically closed after time out.
4. The method of claim 3, wherein the method further comprises: the step pitch of the up-regulation signal and the down-regulation signal is 5%; the maximum value of the adjustment signal is 100% and the minimum value of the adjustment signal is 0.
5. The method of claim 4, wherein the method further comprises: the adjusting control unit (2) is in communication connection with the vehicle control unit (1) through a steering wheel controller, and the steering wheel controller transmits adjusting signals output by the adjusting control unit (2) to the vehicle control unit (1).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211653182.3A CN115675101B (en) | 2022-12-22 | 2022-12-22 | New energy heavy truck sliding feedback torque adjustment control method |
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| CN202211653182.3A CN115675101B (en) | 2022-12-22 | 2022-12-22 | New energy heavy truck sliding feedback torque adjustment control method |
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| CN115675101A true CN115675101A (en) | 2023-02-03 |
| CN115675101B CN115675101B (en) | 2024-04-26 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107650909A (en) * | 2016-07-26 | 2018-02-02 | 比亚迪股份有限公司 | Vehicle and its slide energy feedback control system and method, torque adjusting device |
| CN110385997A (en) * | 2019-06-26 | 2019-10-29 | 江铃汽车股份有限公司 | A kind of energy reclaiming method and system |
| CN110562046A (en) * | 2019-08-09 | 2019-12-13 | 武汉格罗夫氢能汽车有限公司 | Driving characteristic-adjustable hydrogen energy automobile real-time interaction system and control method thereof |
| CN113147425A (en) * | 2021-04-21 | 2021-07-23 | 北京汽车股份有限公司 | Method for recovering multi-gear new energy vehicle in sliding process |
| WO2021197441A1 (en) * | 2020-04-02 | 2021-10-07 | 长城汽车股份有限公司 | Energy recovery control method and system, and vehicle |
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- 2022-12-22 CN CN202211653182.3A patent/CN115675101B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107650909A (en) * | 2016-07-26 | 2018-02-02 | 比亚迪股份有限公司 | Vehicle and its slide energy feedback control system and method, torque adjusting device |
| CN110385997A (en) * | 2019-06-26 | 2019-10-29 | 江铃汽车股份有限公司 | A kind of energy reclaiming method and system |
| CN110562046A (en) * | 2019-08-09 | 2019-12-13 | 武汉格罗夫氢能汽车有限公司 | Driving characteristic-adjustable hydrogen energy automobile real-time interaction system and control method thereof |
| WO2021197441A1 (en) * | 2020-04-02 | 2021-10-07 | 长城汽车股份有限公司 | Energy recovery control method and system, and vehicle |
| CN113147425A (en) * | 2021-04-21 | 2021-07-23 | 北京汽车股份有限公司 | Method for recovering multi-gear new energy vehicle in sliding process |
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