CN113306408A - New driving control device for new energy passenger car and working method of new driving control device - Google Patents
New driving control device for new energy passenger car and working method of new driving control device Download PDFInfo
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- CN113306408A CN113306408A CN202110623803.2A CN202110623803A CN113306408A CN 113306408 A CN113306408 A CN 113306408A CN 202110623803 A CN202110623803 A CN 202110623803A CN 113306408 A CN113306408 A CN 113306408A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L15/00—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles
- B60L15/20—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K26/00—Arrangements or mounting of propulsion unit control devices in vehicles
- B60K26/02—Arrangements or mounting of propulsion unit control devices in vehicles of initiating means or elements
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
- B60R16/023—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for transmission of signals between vehicle parts or subsystems
- B60R16/0231—Circuits relating to the driving or the functioning of the vehicle
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K26/00—Arrangements or mounting of propulsion unit control devices in vehicles
- B60K26/02—Arrangements or mounting of propulsion unit control devices in vehicles of initiating means or elements
- B60K2026/028—Acceleration input members mounted on steering wheel or column
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2240/00—Control parameters of input or output; Target parameters
- B60L2240/10—Vehicle control parameters
- B60L2240/12—Speed
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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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/72—Electric energy management in electromobility
Abstract
The invention discloses a brand new driving control device for a new energy passenger car, which comprises a first shifting piece, a second shifting piece, a central processing module, a motor controller MCU, a driving motor and a vehicle control unit VCU. The invention also discloses a working method of the brand-new driving control device for the new energy passenger car. The principle of the scheme is that a driver dials the first dial and/or the second dial in the driving process, the VCU receives pulse signals sent by the first dial and/or the second dial, and the VCU executes instructions of acceleration, uniform speed, deceleration and the like of the vehicle by controlling the MCU in combination with the current driving state of the vehicle.
Description
Technical Field
The invention belongs to the technical field of passenger car driving control, and particularly relates to a brand-new driving control device for a new-energy passenger car. The invention also relates to a working method of the brand-new driving control device for the new energy passenger car.
Background
At present, the concept of automatic driving is hot, and for passenger cars carrying a large number of people, due to the safety of the public, caution should be taken for automatic driving, and the passenger cars are not operated too urgently. At present pure [ electric ] motor coach drive mode still uses traditional driving to control the mode, and the driver passes through accelerator pedal, brake pedal and steering wheel to vehicle start operation work, and under this mode of controlling, driver's daily amount of labour is huge, and the in-process driver of traveling is when need considering peripheral pedestrian and other vehicles, still need frequently switch brake pedal and accelerator pedal's the action of trampling with the right foot, has great mistake and steps on the probability, and requires very high to driver's health. In addition, the current passenger car field generally has the unfavorable phenomena that the training period of a driver is long, the driver is easy to fatigue in driving, and the like, so that the driving work of the passenger car is essentially manual labor, and for the driver, the driver drives a bus to shuttle in a city, and the safety is particularly important.
Before the automatic driving is realized comprehensively, the scheme is a simple and efficient intermediate transition control mode and is popular in the field of passenger cars.
Disclosure of Invention
The invention aims to solve the technical problem of providing a brand-new driving control device for a new energy passenger car, which avoids the frequent trampling actions of a brake pedal and an accelerator pedal and reduces the error trampling probability.
The invention solves the technical problems through the following technical scheme,
the utility model provides a new forms of energy passenger train is with brand-new operation control device that drives, includes first plectrum, second plectrum, central processing module, machine controller MCU, driving motor and vehicle control unit VCU, its characterized in that:
the VCU acquires a real-time speed and a brake signal of the passenger car, receives a low-power acceleration signal or a high-power acceleration signal of the vehicle or releases a control signal and sends a motor control signal to the MCU;
the motor controller MCU receives a motor control signal sent by the VCU of the vehicle control unit and controls a driving motor to operate;
the driving motor converts electric energy into kinetic energy to drive the passenger car to run;
the first shifting piece is connected with the central processing module through a signal wire, and sends an acceleration control signal to the central processing module after being shifted and triggered;
the second shifting piece is connected with the central processing module through a signal wire, and a control releasing signal is sent to the central processing module after the second shifting piece is shifted and triggered;
the central processing module comprises a first speed comparison module, a second speed comparison module and a state detection module, wherein the first speed comparison module prestores a vehicle low-speed running value and compares the real-time speed of the passenger car with the prestored vehicle low-speed running value; the second speed comparison module prestores a vehicle high-speed operation value and compares the real-time speed of the passenger car with the prestored vehicle high-speed operation value; the state detection module detects the running state of the vehicle and respectively sends acceleration, constant speed and non-acceleration constant speed state signals;
when the passenger car is in the D-gear running mode, the central processing module acquires the real-time speed of the passenger car through the vehicle control unit VCU,
after the first shifting piece is clicked to send an acceleration control signal to the central processing module,
the state detection module detects the running state of the vehicle, when a non-acceleration constant speed state signal is sent out,
the first speed comparison module compares the real-time speed of the passenger car with a pre-stored low-speed running value of the vehicle,
when the real-time speed of the passenger car is less than the pre-stored low-speed running value of the vehicle, the central processing module sends a low-power acceleration signal of the vehicle to the VCU of the vehicle controller, and the VCU of the vehicle controller controls the driving motor to accelerate at low power through the MCU until the real-time speed of the passenger car is equal to the pre-stored low-speed running value of the vehicle, and then the pre-stored low-speed running value of the vehicle is kept to run at a constant speed;
when the real-time speed of the passenger car is not lower than the pre-stored low-speed running value of the vehicle, the second speed comparison module compares the real-time speed of the passenger car with the pre-stored high-speed running value of the vehicle,
when the real-time speed of the passenger car is lower than a prestored high-speed running value of the vehicle, the central processing module sends a high-power acceleration signal of the vehicle to the VCU of the vehicle controller, and the VCU of the vehicle controller controls the driving motor to accelerate at high power through the MCU of the motor controller; the VCU sends a vehicle constant-speed running signal until the real-time speed of the passenger car is equal to the pre-stored high-speed running value of the vehicle, and the VCU keeps the pre-stored high-speed running value of the vehicle running at a constant speed;
when the real-time speed of the passenger car is not lower than the pre-stored high-speed operation value of the vehicle, the vehicle control unit VCU does not send an acceleration signal until the real-time speed of the passenger car is equal to the pre-stored high-speed operation value of the vehicle, and then the vehicle control unit VCU sends a constant-speed running signal of the vehicle to keep the pre-stored high-speed operation value of the vehicle running at a constant speed;
when the state detection module sends an acceleration or uniform speed state signal,
the central processing module sends a vehicle high-power acceleration signal to the vehicle control unit VCU, the vehicle control unit VCU controls the driving motor to accelerate in high power through the motor control unit MCU, and the vehicle control unit VCU sends a vehicle constant-speed running signal after the real-time speed of the passenger car is equal to the pre-stored vehicle high-speed running value, and keeps the pre-stored vehicle high-speed running value running at a constant speed;
when the second shifting piece is clicked to send a control releasing signal to the central processing module, the state detection module detects the running state of the vehicle,
when the state detection module sends an acceleration state signal, the vehicle control unit VCU sends a vehicle constant-speed running signal, and the vehicle keeps running at a constant speed at the moment of the action of the second shifting piece;
when the state detection module sends a constant speed or non-acceleration constant speed state signal, the vehicle runs without power until the vehicle stops.
In order to obtain better technical effect, the vehicle brake system further comprises a brake pedal, wherein the brake pedal sends a forced termination signal and a brake signal, and the brake signal is sent to a brake system to brake the vehicle; and the forced termination signal is sent to the VCU of the vehicle controller, and the vehicle constant-speed running signal, the vehicle low-power acceleration signal and/or the vehicle high-power acceleration signal sent by the VCU of the vehicle controller are forcibly terminated.
In order to obtain a better technical effect, the first shifting piece and the second shifting piece are both automatic return type switches.
The invention also provides a working method of the brand-new driving control device for the new energy passenger car, which comprises the following steps,
(1) after the vehicle is prepared, the D gear is engaged;
(2) the VCU of the vehicle control unit acquires the real-time speed of the passenger car;
(3) clicking the first shifting piece and sending an acceleration control signal to the central processing module;
(4) after receiving the acceleration control signal, the central processing module extracts the real-time speed of the passenger car from the VCU of the whole vehicle controller, and the state detection module detects the running state of the passenger car;
(4.1) when the state detection module sends out a non-acceleration uniform speed state signal,
the first speed comparison module compares the real-time speed of the passenger car with a pre-stored low-speed running value of the vehicle,
(4.1.1) when the real-time speed of the passenger car is less than the pre-stored low-speed running value of the vehicle, the central processing module sends a low-power acceleration signal of the vehicle to the VCU of the vehicle controller, and the VCU of the vehicle controller controls a driving motor to accelerate at low power through a motor controller MCU (microprogrammed control Unit), and the pre-stored low-speed running value of the vehicle is kept to run at a constant speed after the real-time speed of the passenger car is equal to the pre-stored low-speed running value of the vehicle;
(4.1.2) when the real-time speed of the passenger car is not lower than the pre-stored low-speed running value of the vehicle, the second speed comparison module compares the real-time speed of the passenger car with the pre-stored high-speed running value of the vehicle,
(4.1.2.1) when the real-time speed of the passenger car is lower than the pre-stored high-speed running value of the vehicle, the central processing module sends a high-power acceleration signal of the vehicle to the VCU of the vehicle controller, the VCU of the vehicle controller controls the high-power acceleration of the driving motor through the MCU, and the VCU of the vehicle controller sends a constant-speed running signal of the vehicle until the real-time speed of the passenger car is equal to the pre-stored high-speed running value of the vehicle, and keeps the pre-stored high-speed running value of the vehicle running at a constant speed;
(4.1.2.2) when the real-time speed of the passenger car is not lower than the pre-stored high-speed running value of the vehicle, not sending an acceleration signal, and after the real-time speed of the passenger car is equal to the pre-stored high-speed running value of the vehicle, sending a constant-speed running signal of the vehicle by the VCU of the vehicle controller to keep the pre-stored high-speed running value of the vehicle running at a constant speed;
(4.2) when the state detection module sends out an acceleration or uniform speed state signal,
the central processing module sends a vehicle high-power acceleration signal to the vehicle control unit VCU, the vehicle control unit VCU controls the driving motor to accelerate in high power through the motor control unit MCU, and the vehicle control unit VCU sends a vehicle constant-speed running signal after the real-time speed of the passenger car is equal to the pre-stored vehicle high-speed running value, and keeps the pre-stored vehicle high-speed running value running at a constant speed;
(5) clicking the second shifting piece, and when a control releasing signal is sent to the central processing module, detecting the running state of the vehicle by the state detection module;
(5.1) when the state detection module sends an acceleration state signal, the vehicle control unit VCU sends a vehicle constant-speed running signal, and the vehicle keeps running at a constant speed at the moment of the action of the second plectrum;
and (5.2) when the state detection module sends a constant speed or non-acceleration constant speed state signal, the vehicle runs without power until the vehicle stops.
In order to obtain better technical effect, the method also comprises a step (6),
the step (6) also comprises a brake pedal which sends out a forced termination signal and a braking signal,
the braking signal is sent to a braking system to brake the vehicle;
and the forced termination signal is sent to the VCU of the vehicle controller, and the vehicle constant-speed running signal, the vehicle low-power acceleration signal and/or the vehicle high-power acceleration signal sent by the VCU of the vehicle controller are forcibly terminated.
The principle of the scheme is that a driver dials the first dial and/or the second dial in the driving process, the VCU receives pulse signals sent by the first dial and/or the second dial, and the VCU executes instructions of acceleration, uniform speed, deceleration and the like of the vehicle by controlling the MCU in combination with the current driving state of the vehicle.
Drawings
FIG. 1 is a schematic diagram of the circuit of the present invention;
FIG. 2 is a flow chart illustrating the operation of the present invention;
FIG. 3 is a velocity-time graph of the present invention;
FIG. 4 is a schematic structural diagram of the apparatus of the present invention.
Detailed Description
The invention will be explained in more detail below with reference to the accompanying fig. 1-4 and examples.
Example 1
A brand new driving control device for a new energy passenger car comprises a first shifting piece, a second shifting piece, a central processing module, a brake pedal, a motor controller MCU, a driving motor and a vehicle control unit VCU,
the VCU acquires a real-time speed and a brake signal of the passenger car, receives a low-power acceleration signal or a high-power acceleration signal of the vehicle or releases a control signal and sends a motor control signal to the MCU;
the motor controller MCU receives a motor control signal sent by the VCU of the vehicle control unit and controls a driving motor to operate;
the driving motor converts electric energy into kinetic energy to drive the passenger car to run;
the first shifting piece is connected with the central processing module through a signal wire, and sends an acceleration control signal to the central processing module after being shifted and triggered;
the acceleration control signal comprises a vehicle low-power acceleration signal or a vehicle high-power acceleration signal;
the second shifting piece is connected with the central processing module through a signal wire, and a control releasing signal is sent to the central processing module after the second shifting piece is shifted and triggered;
the first shifting piece and the second shifting piece are automatic return switches;
the central processing module comprises a first speed comparison module, a second speed comparison module and a state detection module, wherein the first speed comparison module prestores a vehicle low-speed running value v1 and compares the real-time speed of the passenger car with a prestored vehicle low-speed running value v 1; the second speed comparison module prestores a vehicle high-speed operation value v2 and compares the real-time speed of the passenger car with a prestored vehicle high-speed operation value v 2; the state detection module detects the running state of the vehicle and respectively sends acceleration, constant speed and non-acceleration constant speed state signals;
when the passenger car is in the D-gear running mode, the central processing module acquires the real-time speed of the passenger car through the vehicle control unit VCU,
after the first shifting piece is clicked to send an acceleration control signal to the central processing module,
the state detection module detects the running state of the vehicle, when a non-acceleration constant speed state signal is sent out,
the first speed comparison module compares the real-time speed of the passenger car with a pre-stored low-speed running value of the vehicle,
when the real-time speed of the passenger car is less than the pre-stored low-speed operation value v1 of the vehicle, the central processing module sends a low-power acceleration signal of the vehicle to the VCU of the vehicle controller, the VCU of the vehicle controller controls the driving motor to accelerate at low power through the MCU, see curve 1 of fig. 3, until the real-time speed of the passenger car is equal to the pre-stored low-speed operation value v1 of the vehicle, the pre-stored low-speed operation value v1 of the vehicle is kept to run at a constant speed, see curve 4 of fig. 3;
when the real-time speed of the passenger car is not lower than the pre-stored low-speed running value v1 of the vehicle, the second speed comparison module compares the real-time speed of the passenger car with the pre-stored high-speed running value v2 of the vehicle,
when the real-time speed of the passenger car is lower than a pre-stored high-speed running value v2 of the vehicle, the central processing module sends a high-power acceleration signal of the vehicle to the VCU of the vehicle controller, the VCU of the vehicle controller controls the high-power acceleration of the driving motor through the MCU, see curve 21 in fig. 3, until the real-time speed of the passenger car is equal to the pre-stored high-speed running value v2 of the vehicle, the VCU of the vehicle controller sends a constant-speed running signal of the vehicle, and the pre-stored high-speed running value v2 of the vehicle is kept running at a constant speed, see curve 3 in fig. 3;
when the real-time speed of the passenger car is not lower than the pre-stored high-speed operation value of the vehicle, no acceleration signal is sent, as shown in a curve 5 of fig. 3, and the vehicle controller VCU sends a constant-speed running signal of the vehicle and keeps the pre-stored high-speed operation value of the vehicle running at a constant speed after the real-time speed of the passenger car is equal to the pre-stored high-speed operation value of the vehicle, as shown in a curve 3 of;
when the state detection module sends an acceleration or uniform speed state signal,
the central processing module sends a vehicle high-power acceleration signal to the vehicle control unit VCU, the vehicle control unit VCU controls the driving motor to accelerate at high power through the motor control unit MCU, see curve 22 in figure 3, until the real-time speed of the passenger car is equal to the pre-stored vehicle high-speed operation value, the vehicle control unit VCU sends a vehicle constant-speed running signal, and the pre-stored vehicle high-speed operation value is kept running at constant speed, see curve 3 in figure 3;
if the vehicle directly clicks the first shifting piece twice when running, the state detection module sends an acceleration state signal, so that the VCU of the vehicle controller controls the high-power acceleration of the driving motor through the MCU of the motor controller to carry out rapid acceleration, the rapid acceleration is shown as a curve 23 in figure 3 until the real-time speed of the passenger car is equal to a prestored high-speed running value of the vehicle, and is shown as a curve 3 in figure 3;
when the second shifting piece is clicked to send a control releasing signal to the central processing module, the state detection module detects the running state of the vehicle,
when the state detection module sends an acceleration state signal, the vehicle control unit VCU sends a vehicle constant-speed running signal, and the vehicle keeps running at a constant speed at the moment of the action of the second shifting piece;
when the state detection module sends a constant speed or non-acceleration constant speed state signal, the vehicle runs without power until the vehicle stops;
the brake pedal sends a forced termination signal and a brake signal, and the brake signal is sent to a brake system to brake the vehicle; and the forced termination signal is sent to the VCU of the vehicle controller, and the vehicle constant-speed running signal, the vehicle low-power acceleration signal and/or the vehicle high-power acceleration signal sent by the VCU of the vehicle controller are forcibly terminated.
Example 2
A working method of a brand-new driving control device for a new energy bus comprises the following steps,
(1) after the vehicle is prepared, the D gear is engaged;
(2) the VCU of the vehicle control unit acquires the real-time speed of the passenger car;
(3) clicking the first shifting piece and sending an acceleration control signal to the central processing module;
(4) after receiving the acceleration control signal, the central processing module extracts the real-time speed of the passenger car from the VCU of the whole vehicle controller, and the state detection module detects the running state of the passenger car;
(4.1) when the state detection module sends out a non-acceleration uniform speed state signal,
the first speed comparison module compares the real-time speed of the passenger car with a pre-stored low-speed running value of the vehicle, wherein the pre-stored low-speed running value of the vehicle is 40 km/h;
(4.1.1) when the real-time speed of the passenger car is less than a pre-stored low-speed running value of the vehicle, the central processing module sends a low-power acceleration signal to the vehicle control unit VCU, and the vehicle control unit VCU controls the driving motor to accelerate at low power through the motor control unit MCU; keeping the pre-stored low-speed running value of the vehicle to run at a constant speed of 40km/h until the real-time speed of the passenger car is equal to the pre-stored low-speed running value of the vehicle;
(4.1.2) when the real-time speed of the passenger car is not lower than a pre-stored low-speed running value of the vehicle, comparing the real-time speed of the passenger car with a pre-stored high-speed running value of the vehicle by the second speed comparison module, wherein the pre-stored high-speed running value of the vehicle is 70 km/h;
(4.1.2.1) when the real-time speed of the passenger car is lower than a prestored high-speed running value of the vehicle, the central processing module sends a high-power acceleration signal of the vehicle to the VCU of the vehicle controller, and the VCU of the vehicle controller controls the driving motor to accelerate in high power through the MCU of the motor controller; the VCU sends a vehicle constant-speed running signal until the real-time speed of the passenger car is equal to the pre-stored high-speed running value of the vehicle, and the VCU keeps the pre-stored high-speed running value of the vehicle running at a constant speed;
(4.1.2.2) when the real-time speed of the passenger car is not lower than the pre-stored high-speed running value of the vehicle, not sending an acceleration signal, and after the real-time speed of the passenger car is equal to the pre-stored high-speed running value of the vehicle, sending a constant-speed running signal of the vehicle by the VCU of the vehicle controller to keep the pre-stored high-speed running value of the vehicle running at a constant speed;
(4.2) when the state detection module sends out an acceleration or uniform speed state signal,
the central processing module sends a vehicle high-power acceleration signal to the vehicle control unit VCU, the vehicle control unit VCU controls the driving motor to accelerate in high power through the motor control unit MCU, and the vehicle control unit VCU sends a vehicle constant-speed running signal after the real-time speed of the passenger car is equal to the pre-stored vehicle high-speed running value, and keeps the pre-stored vehicle high-speed running value running at a constant speed;
(5) clicking the second shifting piece, and when a control releasing signal is sent to the central processing module, detecting the running state of the vehicle by the state detection module;
(5.1) when the state detection module sends an acceleration state signal, the vehicle control unit VCU sends a vehicle constant-speed running signal, and the vehicle keeps running at a constant speed at the moment of the action of the second plectrum;
and (5.2) when the state detection module sends a constant speed or non-acceleration constant speed state signal, the vehicle runs without power until the vehicle stops.
(6) Also comprises a brake pedal which sends out a forced termination signal and a braking signal,
the braking signal is sent to a braking system to brake the vehicle;
and the forced termination signal is sent to the VCU of the vehicle controller, and the vehicle constant-speed running signal, the vehicle low-power acceleration signal and the vehicle high-power acceleration signal sent by the VCU of the vehicle controller are forced to be terminated.
Example 3
FIG. 3 is a velocity-time graph of an embodiment of the present invention.
After the vehicle is prepared, the D gear is engaged, the vehicle speed is 0 at the moment, when the first plectrum is clicked for the first time, the vehicle performs low-power accelerated running, see a curve 1 in figure 3, if the first plectrum is not clicked any more, until the real-time vehicle speed of the passenger car is equal to the pre-stored low-speed running value of the vehicle, and the pre-stored low-speed running value of the vehicle is kept to be 40km/h for constant-speed running, see a curve 4 in figure 3;
when the vehicle runs at a constant speed of 40km/h at a low speed or runs at a low power acceleration, the vehicle runs at a high power acceleration by clicking the first shifting piece for the second time, as shown in a curve 21 or 22 in fig. 3, at this time, the passenger car keeps running at the high power acceleration regardless of whether the first shifting piece is continuously clicked or not until the real-time vehicle speed is equal to the pre-stored vehicle high-speed running value, and keeps running at a constant speed of 70km/h in the pre-stored vehicle high-speed running value, as shown in a curve 3 in fig. 3.
If the first plectrum is continuously clicked for multiple times when the vehicle speed is 0, the vehicle directly carries out high-power accelerated driving, see a curve 23 in figure 3, and at the moment, the passenger car keeps high-power accelerated driving regardless of whether the first plectrum is continuously clicked or not until the real-time vehicle speed is equal to a pre-stored vehicle high-speed operation value and keeps the pre-stored vehicle high-speed operation value of 70km/h for uniform driving, see a curve 3 in figure 3.
And if the speed of the passenger car is greater than the high-speed running value of the vehicle, clicking the first shifting piece, not sending an acceleration signal, and after the real-time speed of the passenger car is equal to the pre-stored high-speed running value of the vehicle, sending a constant-speed running signal by the VCU of the vehicle controller, and keeping the pre-stored high-speed running value of the vehicle running at a constant speed, wherein the curve 5 and the curve 3 in figure 3 are shown.
In the scheme, an accelerator pedal is cancelled, the accelerator control is changed into the control by the first shifting piece 12 and the second shifting piece 13 on the left side and the right side below the steering wheel 10 (the specific positions of the first shifting piece and the second shifting piece are not limited in the invention, and the positions of the first shifting piece 12 and the second shifting piece 13 in the figure 4 are not limited in the invention), and the accelerator control can be directly carried out on the vehicle by manually shifting the first shifting piece 12 or the second shifting piece 13.
The invention accords with the operation habit of drivers in the new future era, greatly reduces the operation difficulty of the drivers, greatly reduces the threshold of the drivers for entering the job and reduces the training time of the drivers for entering the job; the scheme transfers the control of the power to the manual shifting operation, and compared with the action of stepping on the accelerator pedal by feet of the driver at present, the fatigue degree of the driver can be effectively reduced, and the driving safety is greatly improved; the scheme cancels the accelerator pedal and only keeps the brake pedal. The mistaken stepping actions of the accelerator pedal and the brake pedal in the current mode are fundamentally avoided.
The scheme relates to the change of a control strategy of a VCU of a vehicle control unit, the development of a novel plectrum type switch and the updating of a partial circuit principle, and has the advantages of low function development difficulty, low cost and strong practicability.
Claims (5)
1. The utility model provides a new forms of energy passenger train is with brand-new operation control device that drives, includes first plectrum, second plectrum, central processing module, machine controller MCU, driving motor and vehicle control unit VCU, its characterized in that:
the VCU acquires a real-time speed and a brake signal of the passenger car, receives a low-power acceleration signal or a high-power acceleration signal of the vehicle or releases a control signal and sends a motor control signal to the MCU;
the motor controller MCU receives a motor control signal sent by the VCU of the vehicle control unit and controls a driving motor to operate;
the driving motor converts electric energy into kinetic energy to drive the passenger car to run;
the first shifting piece is connected with the central processing module through a signal wire, and sends an acceleration control signal to the central processing module after being shifted and triggered;
the second shifting piece is connected with the central processing module through a signal wire, and a control releasing signal is sent to the central processing module after the second shifting piece is shifted and triggered;
the central processing module comprises a first speed comparison module, a second speed comparison module and a state detection module, wherein the first speed comparison module prestores a vehicle low-speed running value and compares the real-time speed of the passenger car with the prestored vehicle low-speed running value; the second speed comparison module prestores a vehicle high-speed operation value and compares the real-time speed of the passenger car with the prestored vehicle high-speed operation value; the state detection module detects the running state of the vehicle and respectively sends acceleration, constant speed and non-acceleration constant speed state signals;
when the passenger car is in the D-gear running mode, the central processing module acquires the real-time speed of the passenger car through the VCU,
after the first shifting piece is clicked to send an acceleration control signal to the central processing module,
the state detection module detects the running state of the vehicle, when a non-acceleration constant speed state signal is sent out,
the first speed comparison module compares the real-time speed of the passenger car with a pre-stored low-speed running value of the vehicle,
when the real-time speed of the passenger car is less than the pre-stored low-speed running value of the vehicle, the central processing module sends a low-power acceleration signal of the vehicle to the VCU of the vehicle controller, and the VCU of the vehicle controller controls the driving motor to accelerate at low power through the MCU until the real-time speed of the passenger car is equal to the pre-stored low-speed running value of the vehicle, and then the pre-stored low-speed running value of the vehicle is kept to run at a constant speed;
when the real-time speed of the passenger car is not lower than the pre-stored low-speed running value of the vehicle, the second speed comparison module compares the real-time speed of the passenger car with the pre-stored high-speed running value of the vehicle,
when the real-time speed of the passenger car is lower than a pre-stored high-speed running value of the vehicle, the central processing module sends a high-power vehicle acceleration signal to the VCU of the vehicle controller, the VCU of the vehicle controller controls the driving motor to accelerate in high power through the MCU of the motor controller, and the VCU of the vehicle controller sends a constant-speed vehicle running signal until the real-time speed of the passenger car is equal to the pre-stored high-speed running value of the vehicle, and keeps the pre-stored high-speed running value of the vehicle running at a constant speed;
when the real-time speed of the passenger car is not lower than the pre-stored high-speed operation value of the vehicle, the vehicle control unit VCU does not send an acceleration signal until the real-time speed of the passenger car is equal to the pre-stored high-speed operation value of the vehicle, and then the vehicle control unit VCU sends a constant-speed running signal of the vehicle to keep the pre-stored high-speed operation value of the vehicle running at a constant speed;
when the state detection module sends an acceleration or uniform speed state signal,
the central processing module sends a vehicle high-power acceleration signal to the vehicle control unit VCU, the vehicle control unit VCU controls the driving motor to accelerate in high power through the motor control unit MCU, and the vehicle control unit VCU sends a vehicle constant-speed running signal after the real-time speed of the passenger car is equal to the pre-stored vehicle high-speed running value, and keeps the pre-stored vehicle high-speed running value running at a constant speed;
when the second shifting piece is clicked to send a control releasing signal to the central processing module, the state detection module detects the running state of the vehicle,
when the state detection module sends an acceleration state signal, the vehicle control unit VCU sends a vehicle constant-speed running signal, and the vehicle keeps running at a constant speed at the moment of the action of the second shifting piece;
when the state detection module sends a constant speed or non-acceleration constant speed state signal, the vehicle runs without power until the vehicle stops.
2. The new energy bus new driving control device as claimed in claim 1, further comprising a brake pedal, wherein the brake pedal sends out a forced termination signal and a braking signal, and the braking signal is sent to a braking system to brake the bus; and the forced termination signal is sent to the VCU of the vehicle controller, and the vehicle constant-speed running signal, the vehicle low-power acceleration signal and/or the vehicle high-power acceleration signal sent by the VCU of the vehicle controller are forcibly terminated.
3. The new energy bus new driving control device as claimed in claim 1 or 2, wherein the first shifting piece and the second shifting piece are both automatic return switches.
4. The method for operating the new energy bus new driving control device according to any one of claims 1 to 3, comprising the steps of,
(1) after the vehicle is prepared, the D gear is engaged;
(2) the VCU of the vehicle control unit acquires the real-time speed of the passenger car;
(3) clicking the first shifting piece and sending an acceleration control signal to the central processing module;
(4) after receiving the acceleration control signal, the central processing module extracts the real-time speed of the passenger car from the VCU of the whole vehicle controller, and the state detection module detects the running state of the passenger car;
(4.1) when the state detection module sends out a non-acceleration uniform speed state signal,
the first speed comparison module compares the real-time speed of the passenger car with a pre-stored low-speed running value of the vehicle,
(4.1.1) when the real-time speed of the passenger car is less than the pre-stored low-speed running value of the vehicle, the central processing module sends a low-power acceleration signal of the vehicle to the VCU of the vehicle controller, and the VCU of the vehicle controller controls a driving motor to accelerate at low power through a motor controller MCU (microprogrammed control Unit), and the pre-stored low-speed running value of the vehicle is kept to run at a constant speed after the real-time speed of the passenger car is equal to the pre-stored low-speed running value of the vehicle;
(4.1.2) when the real-time speed of the passenger car is not lower than the pre-stored low-speed running value of the vehicle, the second speed comparison module compares the real-time speed of the passenger car with the pre-stored high-speed running value of the vehicle,
(4.1.2.1) when the real-time speed of the passenger car is lower than the pre-stored high-speed running value of the vehicle, the central processing module sends a high-power acceleration signal of the vehicle to the VCU of the vehicle controller, the VCU of the vehicle controller controls the high-power acceleration of the driving motor through the MCU, and the VCU of the vehicle controller sends a constant-speed running signal of the vehicle until the real-time speed of the passenger car is equal to the pre-stored high-speed running value of the vehicle, and keeps the pre-stored high-speed running value of the vehicle running at a constant speed;
(4.1.2.2) when the real-time speed of the passenger car is not lower than the pre-stored high-speed running value of the vehicle, not sending an acceleration signal, and after the real-time speed of the passenger car is equal to the pre-stored high-speed running value of the vehicle, sending a constant-speed running signal of the vehicle by the VCU of the vehicle controller to keep the pre-stored high-speed running value of the vehicle running at a constant speed;
(4.2) when the state detection module sends out an acceleration or uniform speed state signal,
the central processing module sends a vehicle high-power acceleration signal to the vehicle control unit VCU, the vehicle control unit VCU controls the driving motor to accelerate in high power through the motor control unit MCU, and the vehicle control unit VCU sends a vehicle constant-speed running signal after the real-time speed of the passenger car is equal to the pre-stored vehicle high-speed running value, and keeps the pre-stored vehicle high-speed running value running at a constant speed;
(5) clicking the second shifting piece, and when a control releasing signal is sent to the central processing module, detecting the running state of the vehicle by the state detection module;
(5.1) when the state detection module sends an acceleration state signal, the vehicle control unit VCU sends a vehicle constant-speed running signal, and the vehicle keeps running at a constant speed at the moment of the action of the second plectrum;
and (5.2) when the state detection module sends a constant speed or non-acceleration constant speed state signal, the vehicle runs without power until the vehicle stops.
5. The operation method of the new energy bus new driving control device according to claim 4,
further comprises a step (6),
the step (6) also comprises a brake pedal which sends out a forced termination signal and a braking signal,
the braking signal is sent to a braking system to brake the vehicle;
and the forced termination signal is sent to the VCU of the vehicle controller, and the vehicle constant-speed running signal, the vehicle low-power acceleration signal and the vehicle high-power acceleration signal sent by the VCU of the vehicle controller are forced to be terminated.
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