CN113619549A - Vehicle brake control system, vehicle, and control method of vehicle brake control system - Google Patents
Vehicle brake control system, vehicle, and control method of vehicle brake control system Download PDFInfo
- Publication number
- CN113619549A CN113619549A CN202110912718.8A CN202110912718A CN113619549A CN 113619549 A CN113619549 A CN 113619549A CN 202110912718 A CN202110912718 A CN 202110912718A CN 113619549 A CN113619549 A CN 113619549A
- Authority
- CN
- China
- Prior art keywords
- motor
- brake
- eddy current
- rotating speed
- electric quantity
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
- B60T13/74—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with electrical assistance or drive
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
- B60T13/74—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with electrical assistance or drive
- B60T13/745—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with electrical assistance or drive acting on a hydraulic system, e.g. a master cylinder
Abstract
The invention provides a vehicle brake control system, a vehicle and a control method of the vehicle brake control system. The vehicle brake control system includes: a motor; a vortex retarder; an input device; a battery assembly; a control device; the motor is connected with the eddy current retarder, and the motor and the eddy current retarder are respectively connected with the battery assembly; the control device is connected with the motor, the eddy current retarder, the battery assembly and the input device, and is used for acquiring the current rotating speed of the motor and the electric quantity of the battery assembly, determining the target rotating speed of the motor according to an input signal of the input device, determining the acceleration according to the current rotating speed of the motor and the target rotating speed of the motor, and controlling the motor and/or the eddy current retarder to brake according to the electric quantity and the acceleration of the battery assembly. The vehicle brake control system provided by the invention realizes flexible regulation of service braking and solves the problem that energy feedback cannot be realized when the electric quantity of a battery of an electric brake is more than 95%.
Description
Technical Field
The invention relates to the technical field of brake control, in particular to a vehicle brake control system, a vehicle and a control method of the vehicle brake control system.
Background
At present, a hydraulic closed loop transmission is mostly adopted for an engineering machinery driving system. Taking a steel wheel road roller as an example, an engine is used as a power source, the running pump is dragged to work by output torque and rotating speed to form a high-pressure oil path, energy is transmitted to a driving motor by the high-pressure oil, and the driving motor is directly connected with the steel wheel or is connected with the steel wheel through a speed reducer, so that the steel wheel generates driving force for rolling forwards. The driving system has the defects of pollution, noise, efficiency, energy waste and the like, and the flexible adjustment of brake control cannot be realized due to a single brake mode.
Disclosure of Invention
The present invention is directed to at least one technical problem in the prior art or the related art.
To this end, one aspect of the present invention is to propose a vehicle brake control system.
Another aspect of the present invention is to provide a vehicle.
Still another aspect of the present invention is to provide a control method of a vehicle brake control system.
In view of the above, according to one aspect of the present invention, there is provided a vehicle brake control system including: a motor; a vortex retarder; an input device; a battery assembly; a control device; the motor is connected with the eddy current retarder, and the motor and the eddy current retarder are respectively connected with the battery assembly; the control device is connected with the motor, the eddy current retarder, the battery assembly and the input device, and is used for acquiring the current rotating speed of the motor and the electric quantity of the battery assembly, determining the target rotating speed of the motor according to an input signal of the input device, determining the acceleration according to the current rotating speed of the motor and the target rotating speed of the motor, and controlling the motor and/or the eddy current retarder to brake according to the electric quantity and the acceleration of the battery assembly.
The invention provides a vehicle brake control system which comprises a motor, an eddy current retarder, an input device, a battery pack and a control device. The motor is connected with the eddy current retarder, the motor and the eddy current retarder are respectively connected with the battery pack, and the battery pack is used for supplying power to the motor and the eddy current retarder. The input device comprises a gear switch, an emergency stop switch and the like. The control device is connected with the motor, the eddy current retarder, the battery assembly and the input device, and can acquire the rotating speed of the motor, the electric quantity of the battery assembly and the input signal of the input device. When a driver operates the gear switch to shift gears, the gear switch sends an input signal of the current gear to the control device. The control device determines a target rotating speed of the motor according to the input signal, compares the target rotating speed of the motor with the current rotating speed of the motor to judge whether the motor is in the braking mode, and judges the motor to be in the braking mode under the condition that the target rotating speed is less than the current rotating speed. In the braking mode, the acceleration is determined according to the current rotating speed and the target rotating speed of the motor, the acceleration can reflect the speed change condition in the braking process of the running vehicle, and the smaller the value of the acceleration is, the faster the speed change is. The motor and/or the eddy current retarder are controlled to brake according to the acceleration and the electric quantity of the battery assembly, on one hand, flexible adjustment of service braking can be achieved, on the other hand, the eddy current retarder can be adopted to assist braking under the condition that the battery assembly is full of electric quantity, so that the defect that energy feedback cannot be achieved when the electric quantity of the battery is larger than 95% in electric braking is overcome, the problem that electric braking cannot be achieved after the battery is fully charged is solved, and service braking can only depend on ground friction force to prevent inertia from advancing is solved. In addition, the vehicle brake control system adopts the battery, the control device and the motor as power sources, and is more energy-saving and environment-friendly compared with the traditional driving modes of an engine and a running motor.
The present invention relates to vehicles, including but not limited to road rollers, such as road rollers.
The eddy current retarder can reduce the running speed of a vehicle without a service brake, and has higher economical efficiency and environmental protection compared with a brake.
The vehicle brake control system according to the present invention may further include the following features:
in the above technical solution, the vehicle brake control system further includes: a parking brake device; and the control device is connected with the parking brake device and is used for controlling the parking brake device to brake under the condition that the rotating speed of the motor is reduced to zero or an emergency brake command of the input device is received.
In the technical scheme, the vehicle brake control system further comprises a parking brake device, and the control device is connected with the parking brake device. When the rotating speed of the motor is detected to be reduced to zero or an emergency braking instruction of the input device is received, the control device controls the parking braking device to brake, and therefore the problems that a road machine product cannot park on the flat ground and on a slope in the related art are solved.
Furthermore, the control device can respond to an emergency braking instruction and control the motor, the eddy current retarder and the parking braking device to brake, so that the vehicle can be braked and stopped in the shortest time.
In any one of the above technical solutions, the vehicle brake control system includes a speed reducer, and the speed reducer is connected with the eddy current retarder; the parking brake device includes: the parking unit is connected with the speed reducer; and the electro-hydraulic unit is connected with the parking unit and is used for providing braking energy for the parking unit.
In the technical scheme, the vehicle brake control system comprises a speed reducer, and the speed reducer is connected with the eddy current retarder. The parking braking system comprises a parking unit and an electric hydraulic unit, wherein the parking unit is connected with the speed reducer, the electric hydraulic unit is connected with the parking unit, and braking energy is provided for the parking unit through the electric hydraulic unit. In the invention, the battery, the control device and the motor are used as power sources, the parking brake device is used for parking brake when the vehicle is emergently braked, and the electric hydraulic unit is used for providing brake energy for the parking unit during parking brake, so that the energy is saved and the environment is protected; when the vehicle is braked in a running mode, the auxiliary braking is carried out through the motor brake and/or the eddy current retarder, so that on one hand, the flexible regulation of the running brake can be realized, and the running safety is ensured; on the other hand, the eddy current retarder can be used for braking under the condition that the battery assembly is full of electricity, so that the defect that the energy feedback cannot be realized when the electricity of the battery is more than 95% in the electric braking process is overcome, and the problems that the electric braking cannot be realized after the battery assembly is fully charged and the traveling braking can only depend on the ground friction force to prevent the inertia from advancing are solved.
Specifically, the electro-hydraulic unit can convert the electric energy provided by the battery assembly into mechanical energy, namely oil pressure, and after the rotating speed of the motor is reduced to zero or when the vehicle needs emergency braking, the control device controls the electromagnetic valve of the speed reducer to release the oil pressure, so that the brake valve locks the transmission shaft for braking, and the vehicle can be parked on flat ground and on a slope.
In any one of the above technical solutions, controlling the motor and/or the eddy current retarder to perform braking according to the electric quantity and the acceleration of the battery assembly specifically includes: when the electric quantity of the battery assembly is smaller than or equal to a preset value, the acceleration is larger than a first threshold value and smaller than zero, the motor is controlled to brake; when the electric quantity of the battery assembly is smaller than or equal to a preset value, and the acceleration is larger than or equal to a second threshold value and smaller than or equal to a first threshold value, controlling the motor and the eddy current retarder to brake; controlling the eddy current retarder to brake under the condition that the electric quantity of the battery assembly is larger than a preset value or the acceleration is smaller than a second threshold value; wherein the second threshold is less than the first threshold, and the first threshold is less than zero.
According to the technical scheme, the speed change condition of the vehicle in the service braking process is divided into three grades through the first threshold and the second threshold, and the speed change is faster as the grade is higher. Through setting up the default, can judge whether battery pack's electric quantity is full electric quantity or is close full electric quantity, can understand ground, the default is bigger, explains that battery pack's electric quantity is close full electric quantity more, when battery pack's electric quantity is less than or equal to the default, explains that battery pack's electric quantity is not full, and whole car still can carry out electric braking. And under the condition that the electric quantity of the battery assembly is smaller than or equal to a preset value and the acceleration is larger than a first threshold value, the speed change is slow, the speed change is a first level, and the whole vehicle is braked by a motor. Under the condition that the electric quantity of the battery assembly is smaller than or equal to a preset value, and the acceleration is larger than or equal to a second threshold value and smaller than or equal to a first threshold value, the speed change is moderate, the speed change is the second level, and the whole vehicle is subjected to parallel control of motor braking and eddy current retarder braking. And when the acceleration is smaller than the second threshold value, the speed change is relatively fast, the third grade is achieved, and the whole vehicle is braked by the eddy current retarder. Under the condition that battery pack's electric quantity is greater than the default, it is full to show battery pack's electric quantity, can't carry out electric braking this moment, and whole car adopts the eddy current retarder braking, compares traditional brake block braking mode, and braking effect is good, energy-conservation, environmental protection more. Through the braking mode, the vehicle is reduced to the target rotating speed, and flexible adjustment of the braking process is achieved.
Wherein the second threshold is less than the first threshold, and the first threshold is less than zero.
In any of the above aspects, a battery assembly comprises: a storage battery; the power battery is respectively connected with the storage battery and the motor, and is used for supplying power to the storage battery, supplying energy to the motor and receiving regenerative energy fed back by the motor; and the storage battery is respectively connected with the eddy current retarder and the electric hydraulic unit and is used for supplying power to the eddy current retarder and the electric hydraulic unit.
In this technical scheme, battery pack includes battery and power battery, and wherein, battery and power battery are connected, and power battery provides the electric energy for the battery. The power battery is connected with the motor, on one hand, the power battery provides energy for the motor, on the other hand, the power battery can also receive regenerated energy generated by the operation of the motor, and the obtained regenerated energy is fed back to the motor and the storage battery, so that the regenerated energy generated by the motor is recycled. Simultaneously, the battery is connected with eddy current retarder and electronic hydraulic unit respectively to provide the energy for eddy current retarder and electronic hydraulic unit. Therefore, energy recovery is improved, energy-saving performance is more excellent, and compared with traditional brake control, the energy-saving and environment-friendly brake device is more energy-saving and environment-friendly.
In any one of the above aspects, the control device includes: the first controller is connected with the motor and used for responding to a first braking instruction and controlling the motor to brake; the second controller is connected with the eddy current retarder and used for responding to a second braking instruction and controlling the eddy current retarder to brake; and the third controller is used for acquiring the current rotating speed of the motor and the electric quantity of the power battery, determining the target rotating speed of the motor according to an input signal of the input device, determining the acceleration according to the target rotating speed and the current rotating speed under the condition that the target rotating speed is less than the current rotating speed, and generating a corresponding first braking instruction and/or a second braking instruction according to the acceleration and the electric quantity of the power battery.
In this solution, the controller includes a first controller, a second controller, and a third controller. The first controller is connected with the motor, the second controller is connected with the eddy current retarder, and the third controller is respectively connected with the first controller, the second controller and the power battery. And acquiring the electric quantity of the power battery and the current rotating speed of the motor through the third controller, determining the target rotating speed of the motor according to the input information of the input device, and comparing the target rotating speed with the current rotating speed so as to judge whether the motor is in a braking mode. And when the target rotating speed is less than the current rotating speed, determining that the braking mode is adopted. And under the braking mode, determining the acceleration according to the target rotating speed and the current rotating speed, and generating a corresponding first braking instruction and/or a second braking instruction according to the acceleration and the electric quantity of the power battery. The first controller responds to the first braking instruction to control the motor to brake, and the second controller responds to the second braking instruction to control the eddy current retarder to brake. The vehicle brake control system provided by the invention has the advantages that the service brake, the parking brake and the auxiliary brake are independent structures, so that the control is convenient, the upgrading and the maintenance are convenient, and the reliability of the vehicle brake control system can be ensured.
Wherein the third controller is preferably a vehicle control unit. The third controller CAN communicate with the first controller and the second controller, and particularly, the communication among the third controller, the first controller and the second controller CAN be realized through a CAN (controller area network).
According to another aspect of the present invention, a vehicle is provided, which includes a vehicle body, and a vehicle brake control system according to any one of the above technical solutions is provided on the vehicle body.
The invention provides a vehicle, which comprises a vehicle body and a vehicle brake control system arranged on the vehicle body. Therefore, the vehicle of the present invention has all the beneficial effects of the vehicle brake control system according to any of the above technical solutions, and is not described again.
According to still another aspect of the present invention, there is provided a control method of a vehicle brake control system including a motor, an eddy current retarder, an input device, and a battery assembly, the control method including: acquiring the current rotating speed of the motor and the electric quantity of the battery pack; determining a target rotating speed of the motor according to an input signal of the input device; the method comprises the steps of determining acceleration according to the current rotating speed of the motor and the target rotating speed of the motor, and controlling the motor and/or the eddy current retarder to brake according to the electric quantity and the acceleration of the battery assembly.
The invention provides a control method of a vehicle brake control system, wherein the vehicle brake control system comprises a motor, an eddy current retarder, an input device and a battery assembly. The motor is connected with the eddy current retarder, the motor and the eddy current retarder are respectively connected with the battery pack, and the battery pack is used for supplying power to the motor and the eddy current retarder. The input device comprises a gear switch, an emergency stop switch and the like. The control device is connected with the motor, the eddy current retarder, the battery assembly and the input device, and can acquire the rotating speed of the motor, the electric quantity of the battery assembly and the input signal of the input device. When a driver operates the gear switch to shift gears, the gear switch generates an input signal corresponding to the current gear. The method comprises the steps of obtaining the current rotating speed of a motor and the electric quantity of a battery assembly, determining the target rotating speed of the motor according to an input signal, comparing the target rotating speed of the motor with the current rotating speed of the motor to judge whether the motor is in a braking mode, and judging the motor to be in the braking mode under the condition that the target rotating speed is smaller than the current rotating speed. In the braking mode, the acceleration is determined according to the current rotating speed and the target rotating speed of the motor, the acceleration can reflect the speed change condition in the braking process of the running vehicle, and the larger the value of the acceleration is, the faster the speed change is. The motor and/or the eddy current retarder are controlled to brake according to the acceleration and the electric quantity of the battery assembly, on one hand, flexible adjustment of service braking can be achieved, on the other hand, the eddy current retarder can be used for braking under the condition that the battery assembly is full of electric quantity, therefore, the defect that energy feedback cannot be achieved when the electric quantity of the battery is larger than 95% in electric braking is overcome, the problem that electric braking cannot be achieved after the battery assembly is fully charged is solved, and service braking can only depend on ground friction force to prevent inertia from advancing is solved.
In any one of the above technical solutions, controlling the motor and/or the eddy current retarder to perform braking according to the electric quantity and the acceleration of the battery assembly specifically includes: when the electric quantity of the battery assembly is smaller than or equal to a preset value, the acceleration is larger than a first threshold value and smaller than zero, the motor is controlled to brake; when the electric quantity of the battery assembly is smaller than or equal to a preset value, and the acceleration is larger than or equal to a second threshold value and smaller than or equal to a first threshold value, controlling the motor and the eddy current retarder to brake; controlling the eddy current retarder to brake under the condition that the electric quantity of the battery assembly is larger than a preset value or the acceleration is smaller than a second threshold value; wherein the second threshold is less than the first threshold, and the first threshold is less than zero.
According to the technical scheme, the speed change condition of the vehicle in the service braking process is divided into three grades through the first threshold and the second threshold, and the speed change is faster as the grade is higher. Through setting up the default, can judge whether battery pack's electric quantity is full electric quantity or is close full electric quantity, can understand ground, the default is bigger, explains that battery pack's electric quantity is close full electric quantity more, when battery pack's electric quantity is less than or equal to the default, explains that battery pack's electric quantity is not full, and whole car still can carry out electric braking. And under the condition that the electric quantity of the battery assembly is smaller than or equal to a preset value and the acceleration is larger than a first threshold value, the speed change is slow, the speed change is a first level, and the whole vehicle is braked by a motor. Under the condition that the electric quantity of the battery assembly is smaller than or equal to a preset value, and the acceleration is larger than or equal to a second threshold value and smaller than or equal to a first threshold value, the speed change is moderate, the speed change is the second level, and the whole vehicle is subjected to parallel control of motor braking and eddy current retarder braking. And when the acceleration is smaller than the second threshold value, the speed change is relatively fast, the third grade is achieved, and the whole vehicle is braked by the eddy current retarder. Under the condition that battery pack's electric quantity is greater than the default, it is full to show battery pack's electric quantity, can't carry out electric braking this moment, and whole car adopts the eddy current retarder braking, compares traditional brake block braking mode, and braking effect is good, energy-conservation, environmental protection more. Through the braking mode, the vehicle is reduced to the target rotating speed, and flexible adjustment of the braking process is achieved.
Wherein the second threshold is less than the first threshold, and the first threshold is less than zero.
In any one of the above technical solutions, the vehicle brake control system further includes a parking brake device, and the control method further includes: and controlling the parking brake device to brake when the rotating speed of the motor is reduced to zero or an emergency braking instruction of the input device is received.
In this solution, the vehicle brake control system further includes a parking brake device. When the rotating speed of the motor is detected to be reduced to zero or an emergency braking instruction of the input device is received, the parking braking device is controlled to brake, and therefore the problems that a road machine product cannot park on the flat ground and on a slope in the related technology are solved.
Furthermore, the emergency braking instruction is responded, and the motor, the eddy current retarder and the parking braking device are controlled to brake, so that the vehicle can be braked and stopped in the shortest time.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a block diagram of a vehicle brake control system according to an embodiment of the present invention;
FIG. 2 is one of schematic structural diagrams of a vehicle brake control system according to an embodiment of the present invention;
FIG. 3 is a second schematic structural view of a vehicle brake control system in accordance with an embodiment of the present invention;
FIG. 4 is a schematic block diagram of a vehicle in accordance with one embodiment of the present invention;
FIG. 5 is one of flow charts illustrating a control method of the vehicle brake control system according to one embodiment of the invention;
FIG. 6 is a second schematic flow chart of a control method of the vehicle brake control system according to an embodiment of the present invention;
fig. 7 is a flowchart illustrating a control method of a vehicle brake control system according to an embodiment of the present invention.
Wherein, in fig. 1 to 4, the reference numerals:
1 vehicle, 10 vehicle brake control system, 12 electric machine, 14 eddy current retarder, 16 input device, 182 parking unit, 184 electrohydraulic unit, 20 battery, 22 power battery, 24 first controller, 26 third controller, 28 battery thermal management system, 30BMS battery management system, 32PDU power distribution system, 34 speed reducer.
Detailed Description
In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the invention will be rendered by reference to the appended drawings. It should be noted that the embodiments of the present invention and features of the embodiments may be combined with each other without conflict.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited to the specific embodiments disclosed below.
A vehicle brake control system, a vehicle, and a control method of the vehicle brake control system according to some embodiments of the present invention are described below with reference to fig. 1 to 7.
The first embodiment is as follows:
as shown in fig. 1 to 3, according to an embodiment of an aspect of the present invention, there is provided a vehicle brake control system 10 including: a motor 12; a vortex retarder 14; an input device 16; a battery assembly; a control device; the motor 12 is connected with the eddy current retarder 14, and the motor 12 and the eddy current retarder 14 are respectively connected with the battery assembly; the control device is connected with the motor 12, the eddy current retarder 14, the battery assembly and the input device 16, and is configured to obtain a current rotational speed of the motor 12 and an electric quantity of the battery assembly, determine a target rotational speed of the motor 12 according to an input signal of the input device 16, determine an acceleration according to the current rotational speed of the motor 12 and the target rotational speed of the motor 12, and control the motor 12 and/or the eddy current retarder 14 to brake according to the electric quantity and the acceleration of the battery assembly.
The vehicle brake control system 10 provided by the embodiment of the invention comprises a motor 12, an eddy current retarder 14, an input device 16, a battery assembly and a control device. The motor 12 is connected with the eddy current retarder 14, the motor 12 and the eddy current retarder 14 are respectively connected with the battery assembly, and the battery assembly is used for supplying power to the motor 12 and the eddy current retarder 14. The input device 16 includes a gear switch, an emergency stop switch, and the like. The control device is connected with the motor 12, the eddy current retarder 14, the battery assembly and the input device 16, and can acquire the rotating speed of the motor 12, the electric quantity of the battery assembly and the input signal of the input device 16. When a driver operates the gear switch to shift gears, the gear switch sends an input signal of the current gear to the control device. The control device determines a target rotation speed of the motor 12 according to the input signal, compares the target rotation speed of the motor 12 with a current rotation speed of the motor 12 to determine whether the braking mode is performed, and determines the braking mode when the target rotation speed is less than the current rotation speed. In the braking mode, the acceleration is determined according to the current rotating speed and the target rotating speed of the motor 12, the acceleration can reflect the speed change condition in the braking process of the running vehicle, and the smaller the value of the acceleration is, the faster the speed change is. The motor 12 and/or the eddy current retarder 14 are controlled to brake according to the acceleration and the electric quantity of the battery assembly, on one hand, flexible adjustment of service braking can be achieved, on the other hand, the eddy current retarder 14 can be adopted to assist braking under the condition that the battery assembly is full of electric quantity, so that the defect that energy feedback cannot be carried out when the electric quantity of the battery is larger than 95% in electric braking is overcome, the problem that electric braking cannot be carried out after the battery is fully charged, and the service braking can only depend on ground friction force to prevent inertia from advancing is solved. In addition, the vehicle brake control system 10 of the present invention uses the battery, the control device and the motor 12 as power sources, and is more energy-saving and environment-friendly than the conventional driving methods of an engine and a driving motor.
The present invention relates to vehicles, including but not limited to road rollers, such as road rollers.
The eddy current retarder 14 can reduce the running speed of the vehicle without a service brake, and compared with a brake, the eddy current retarder 14 is more economical and environment-friendly.
Example two:
in the above embodiment, the vehicle brake control system 10 further includes: a parking brake device; and a control device connected with the parking brake device, wherein the control device is used for controlling the parking brake device to brake when the rotating speed of the motor 12 is reduced to zero or an emergency brake command of the input device 16 is received.
In this embodiment, the vehicle brake control system 10 further includes a parking brake device, and the control device is connected to the parking brake device. When the rotation speed of the motor 12 is detected to be reduced to zero or an emergency braking instruction of the input device 16 is received, the control device controls the parking braking device to brake, so that the problem that the road machine product cannot park on the flat ground and on the slope in the related art is solved.
Further, the control device can respond to the emergency braking command and control the motor 12, the eddy current retarder 14 and the parking braking device to brake, so that the vehicle can be braked and stopped in the shortest time.
Example three:
as shown in fig. 1 and 3, in any of the above embodiments, the vehicle brake control system 10 includes a speed reducer 34, and the speed reducer 34 is connected to the eddy current retarder 14; the parking brake device includes: a parking unit 182 connected to the speed reducer 34; and the electro-hydraulic unit 184 is connected with the parking unit 182, and the electro-hydraulic unit 184 is used for providing braking energy for the parking unit 182.
In this embodiment, the vehicle brake control system 10 includes a speed reducer 34, the speed reducer 34 being connected to the eddy current retarder 14. The parking brake device comprises a parking unit 182 and an electric hydraulic unit 184, wherein the parking unit 182 is connected with the speed reducer 34, the electric hydraulic unit 184 is connected with the parking unit 182, and braking energy is provided for the parking unit 182 through the electric hydraulic unit 184, wherein the parking unit 182 can be integrally arranged on the speed reducer 34, and the two speed reducers have a speed reducing function. In the invention, the battery, the control device and the motor 12 are used as power sources, the parking brake device is used for parking brake when the vehicle is braked emergently, and the electric hydraulic unit 184 is used for providing brake energy for the parking unit 182 during parking brake, so that the energy-saving and environment-friendly effects are achieved; during service braking, the motor 12 is used for braking, and/or the eddy current retarder 14 is used for auxiliary braking, so that on one hand, flexible adjustment of service braking can be realized, and service safety is ensured; on the other hand, under the condition that the battery assembly is fully charged, the eddy current retarder 14 is adopted for braking, so that the defect that energy feedback cannot be carried out when the battery electric quantity is more than 95% in the electric braking is overcome, and the problems that the electric braking cannot be carried out after the battery assembly is fully charged and the traveling braking can only depend on the ground friction force to prevent inertia from advancing are solved.
Example four:
in any of the above embodiments, controlling the electric machine 12 and/or the eddy current retarder 14 to brake according to the electric quantity and the acceleration of the battery assembly specifically includes: when the electric quantity of the battery assembly is smaller than or equal to a preset value, the acceleration is larger than a first threshold value and is smaller than zero, controlling the motor 12 to brake; when the electric quantity of the battery assembly is smaller than or equal to a preset value, and the acceleration is larger than or equal to a second threshold value and smaller than or equal to a first threshold value, controlling the motor 12 and the eddy current retarder 14 to brake; controlling the eddy current retarder 14 to brake under the condition that the electric quantity of the battery assembly is greater than a preset value or the acceleration is smaller than a second threshold value; wherein the second threshold is less than the first threshold, and the first threshold is less than zero.
In this embodiment, the speed variation of the vehicle during service braking is divided into three levels by the first threshold and the second threshold, and the speed variation is faster as the level is higher. Through setting up the default, can judge whether battery pack's electric quantity is full electric quantity or is close full electric quantity, can understand ground, the default is bigger, explains that battery pack's electric quantity is close full electric quantity more, when battery pack's electric quantity is less than or equal to the default, explains that battery pack's electric quantity is not full, and whole car still can carry out electric braking. Under the condition that the electric quantity of the battery assembly is smaller than or equal to the preset value and the acceleration is larger than the first threshold value, the speed change is slow, the speed change is a first level, and the whole vehicle is braked by the motor 12. Under the condition that the electric quantity of the battery assembly is smaller than or equal to a preset value, and the acceleration is larger than or equal to a second threshold value and smaller than or equal to a first threshold value, the speed change is moderate, the speed change is the second level, and the whole vehicle is subjected to parallel control of motor 12 braking and eddy current retarder 14 braking. And when the acceleration is smaller than the second threshold value, the speed change is relatively fast, the third grade is achieved, and the whole vehicle is braked by the eddy current retarder 14. Under the condition that the electric quantity of battery pack is greater than the default, it is full to show that battery pack's electric quantity is full, can't carry out electric braking this moment, and whole car adopts eddy current retarder 14 braking, compares traditional brake block braking mode, and braking effect is good, more energy-conserving, environmental protection. Through the braking mode, the vehicle is reduced to the target rotating speed, and flexible adjustment of the braking process is achieved. Wherein the second threshold is less than the first threshold, and the first threshold is less than zero.
Example five:
as shown in fig. 1 and 2, in any of the above embodiments, the battery module includes: a battery 20; the power battery 22 is respectively connected with the storage battery 20 and the motor 12, and the power battery 22 is used for supplying power to the storage battery 20, supplying energy to the motor 12 and receiving regenerative energy fed back by the motor 12; and the storage battery 20 is respectively connected with the eddy current retarder 14 and the electro-hydraulic unit 184, and the storage battery 20 is used for supplying power to the eddy current retarder 14 and the electro-hydraulic unit 184.
In this embodiment, the battery assembly includes a battery 20 and a power cell 22, wherein the battery 20 and the power cell 22 are connected, and the power cell 22 provides electric energy for the battery 20. The power battery 22 is connected with the motor 12, and the power battery 22 provides energy for the motor 12 on one hand, and can also receive regenerated energy generated by the operation of the motor 12 on the other hand, and the obtained regenerated energy is fed back to the motor 12 and the storage battery 20, so that the regenerated energy generated by the motor 12 is recycled. Meanwhile, the battery 20 is connected to the eddy current retarder 14 and the electro-hydraulic unit 184, respectively, to supply energy to the eddy current retarder 14 and the electro-hydraulic unit 184. Therefore, energy recovery is improved, energy-saving performance is more excellent, and compared with traditional brake control, the energy-saving and environment-friendly brake device is more energy-saving and environment-friendly.
Specifically, the battery 20 is a 24V battery.
Example six:
as shown in fig. 1 and 2, in any of the above embodiments, the control device includes: the first controller 24 is connected with the motor 12, and the first controller 24 is used for responding to a first braking instruction and controlling the motor 12 to brake; the second controller is connected with the eddy current retarder 14 and is used for responding to a second braking instruction and controlling the eddy current retarder 14 to brake; and the third controller 26 is connected with the first controller 24, the second controller and the power battery 22, respectively, and the third controller 26 is configured to obtain a current rotation speed of the motor 12 and an electric quantity of the power battery 22, determine a target rotation speed of the motor 12 according to an input signal of the input device 16, determine an acceleration according to the target rotation speed and the current rotation speed when the target rotation speed is less than the current rotation speed, and generate a corresponding first braking instruction and/or a second braking instruction according to the acceleration and the electric quantity of the power battery 22.
In this embodiment, the controller includes a first controller 24 and a second controller and a third controller 26. The first controller 24 is connected to the electric machine 12, the second controller is connected to the eddy current retarder 14, and the third controller 26 is connected to the first controller 24, the second controller, and the power battery 22. The third controller 26 obtains the power of the power battery 22 and the current rotation speed of the motor 12, determines the target rotation speed of the motor 12 according to the input information of the input device 16, and compares the target rotation speed with the current rotation speed to determine whether the braking mode is performed. And when the target rotating speed is less than the current rotating speed, determining that the braking mode is adopted. In the braking mode, the acceleration is determined according to the target rotating speed and the current rotating speed, and then the corresponding first braking instruction and/or second braking instruction are generated according to the acceleration and the electric quantity of the power battery 22. The first controller 24 controls the motor 12 to brake in response to the first brake command, and the second controller controls the eddy current retarder 14 to brake in response to the second brake command. According to the vehicle brake control system 10 provided by the invention, the service brake, the parking brake and the auxiliary brake are independent structures, so that the control is convenient, the upgrading and the maintenance are convenient, and the reliability of the vehicle brake control system 10 can be ensured.
Wherein the third controller 26 is preferably a vehicle control unit. The third controller 26 is communicable with the first controller 24 and the second controller, and particularly, communication among the three may be realized through a CAN network.
Example seven:
as shown in fig. 4, according to another embodiment of the invention, a vehicle 1 is provided, which includes a vehicle body, and a vehicle brake control system 10 according to any one of the embodiments is provided on the vehicle body. Wherein the vehicle 1 may be a road roller.
The vehicle 1 according to the present invention includes a vehicle body and the vehicle brake control system 10 according to any one of the above embodiments provided on the vehicle body. Therefore, the vehicle 1 of the present invention has all the advantages of the vehicle brake control system 10 of any one of the embodiments described above, and the detailed description thereof is omitted.
Example eight:
fig. 5 is one of the flow charts of the control method of the vehicle brake control system according to the embodiment of the invention. The control method comprises the following steps:
502, acquiring the current rotating speed of a motor and the electric quantity of a battery assembly;
The embodiment of the invention provides a control method of a vehicle brake control system, wherein the vehicle brake control system comprises a motor, an eddy current retarder, an input device and a battery assembly. The motor is connected with the eddy current retarder, the motor and the eddy current retarder are respectively connected with the battery pack, and the battery pack is used for supplying power to the motor and the eddy current retarder. The input device comprises a gear switch, an emergency stop switch and the like. The control device is connected with the motor, the eddy current retarder, the battery assembly and the input device, and can acquire the rotating speed of the motor, the electric quantity of the battery assembly and the input signal of the input device. When a driver operates the gear switch to shift gears, the gear switch generates an input signal corresponding to the current gear. The method comprises the steps of obtaining the current rotating speed of a motor and the electric quantity of a battery assembly, determining the target rotating speed of the motor according to an input signal, comparing the target rotating speed of the motor with the current rotating speed of the motor to judge whether the motor is in a braking mode, and judging the motor to be in the braking mode under the condition that the target rotating speed is smaller than the current rotating speed. In the braking mode, the acceleration is determined according to the current rotating speed and the target rotating speed of the motor, the acceleration can reflect the speed change condition in the braking process of the running vehicle, and the larger the value of the acceleration is, the faster the speed change is. The motor and/or the eddy current retarder are controlled to brake according to the acceleration and the electric quantity of the battery assembly, on one hand, flexible adjustment of service braking can be achieved, on the other hand, the eddy current retarder can be used for braking under the condition that the battery assembly is full of electric quantity, therefore, the defect that energy feedback cannot be achieved when the electric quantity of the battery is larger than 95% in electric braking is overcome, the problem that electric braking cannot be achieved after the battery assembly is fully charged is solved, and service braking can only depend on ground friction force to prevent inertia from advancing is solved.
Example nine:
fig. 6 is one of the flow charts of the control method of the vehicle brake control system according to the embodiment of the invention. The control method comprises the following steps:
and step 610, controlling the eddy current retarder to brake under the condition that the electric quantity of the battery pack is larger than a preset value or the acceleration is smaller than a second threshold value.
Wherein the second threshold is less than the first threshold, and the first threshold is less than zero.
In this embodiment, the speed variation of the vehicle during service braking is divided into three levels by the first threshold and the second threshold, and the speed variation is faster as the level is higher. Through setting up the default, can judge whether battery pack's electric quantity is full electric quantity or is close full electric quantity, can understand ground, the default is bigger, explains that battery pack's electric quantity is close full electric quantity more, when battery pack's electric quantity is less than or equal to the default, explains that battery pack's electric quantity is not full, and whole car still can carry out electric braking. And under the condition that the electric quantity of the battery assembly is smaller than or equal to a preset value and the acceleration is larger than a first threshold value, the speed change is slow, the speed change is a first level, and the whole vehicle is braked by a motor. Under the condition that the electric quantity of the battery assembly is smaller than or equal to a preset value, and the acceleration is larger than or equal to a second threshold value and smaller than or equal to a first threshold value, the speed change is moderate, the speed change is the second level, and the whole vehicle is subjected to parallel control of motor braking and eddy current retarder braking. And when the acceleration is smaller than the second threshold value, the speed change is relatively fast, the third grade is achieved, and the whole vehicle is braked by the eddy current retarder. Under the condition that battery pack's electric quantity is greater than the default, it is full to show battery pack's electric quantity, can't carry out electric braking this moment, and whole car adopts the eddy current retarder braking, compares traditional brake block braking mode, and braking effect is good, energy-conservation, environmental protection more. Through the braking mode, the vehicle is reduced to the target rotating speed, and flexible adjustment of the braking process is achieved.
The second threshold is smaller than the first threshold, and the first threshold is smaller than zero, that is, the acceleration value is a negative number, and the smaller the acceleration is, the faster the speed change is.
Example ten:
in any of the above embodiments, the vehicle brake control system further includes a parking brake device, and the control method further includes: and controlling the parking brake device to brake when the rotating speed of the motor is reduced to zero or an emergency braking instruction of the input device is received.
In this embodiment, the vehicle brake control system further includes a parking brake device. When the rotating speed of the motor is detected to be reduced to zero or an emergency braking instruction of the input device is received, the parking braking device is controlled to brake, and therefore the problems that a road machine product cannot park on the flat ground and on a slope in the related technology are solved. Furthermore, the emergency braking instruction is responded, and the motor, the eddy current retarder and the parking braking device are controlled to brake, so that the vehicle can be braked and stopped in the shortest time.
The first embodiment is as follows:
as shown in fig. 1, 2 and 3, according to an embodiment of an aspect of the present invention, a vehicle brake control system 10 is provided. Specifically, the vehicle brake control system 10 is provided on the body of the electric road roller. The vehicle brake control system 10 includes a power battery 22, a battery thermal management system 28, a BMS battery management system 30 (referred to as BMS system for short), a PDU power distribution system 32, a first controller 24, a motor 12, an eddy current retarder 14, a speed reducer 34 (including a parking unit 182), and an operation steel wheel.
The battery thermal management system 28 is configured to manage the temperature of the power battery, and when the temperature of the power battery is too high, for example, exceeds 30 ℃, the power battery may be cooled to ensure the stability of the power battery.
The control strategy is as follows:
1) a high-voltage power-on process: when the key is screwed into the ACC gear, the whole vehicle starts self-checking. After self-checking, the vehicle control unit sends a ready signal to the display screen to indicate that high-voltage power-on can be carried out. After the key is screwed into the ON gear, the vehicle control unit sends a power-ON request to the BMS battery management system 30, and the BMS battery management system 30 closes the internal high-voltage contactor and feeds back voltage and current signals. And the vehicle control unit sends a command for closing the high-voltage distribution contactor, communicates with the combined motor controller, starts pre-charging, and closes the main loop contactor after the pre-charging is finished so as to realize a high-voltage power-on process.
2) The vehicle running process: the vehicle control unit receives a gear switch signal, calculates a given rotating speed and torque according to a gear switch stroke value, sends an instruction to the motor controller, the motor controller adjusts output current through the inverter module to control the rotating speed and the torque of the motor 12, the motor output shaft is connected with the eddy current retarder 14 and the speed reducer 34, transmits the output torque to the steel wheel, and releases parking brake, so that the vehicle starts to run.
3) And (3) vehicle running braking process: when the vehicle runs at a certain speed, the driver controls the gear switch to reduce the speed of the vehicle, the vehicle controller calculates the rotating speed of the motor 12 required to run according to the stroke value of the gear switch, negative acceleration is calculated by comparing the current speed value, braking torque can be calculated according to the negative acceleration, the mass of the vehicle and the size of a steel wheel, and the braking torque required to be output by the output shaft can be obtained by removing influences such as friction resistance. When the negative acceleration is greater than-0.1 g, the whole vehicle is electrically braked, and the braking torque is provided by the driving motor. When the negative acceleration is less than or equal to-0.4 g and less than or equal to-0.1 g, the whole vehicle adopts electric braking and electric eddy current retarder for parallel braking. When the negative acceleration is less than or equal to-0.4 g or the electric quantity of the power battery is greater than 95% of SOC, the whole vehicle is braked by the eddy current retarder. The vehicle is brought down to a given vehicle speed in the above manner.
4) The vehicle parking braking process: when the rotating speed of the motor 12 is reduced to zero, the vehicle control unit controls the electromagnetic valve of the speed reducer with the wet multi-disc brake to release oil pressure, so that a brake valve spring is loosened, a transmission shaft is locked for braking, and the vehicle can be parked on the flat ground and on a slope.
5) Vehicle emergency braking process: when the system detects an emergency stop signal, the electric brake of the motor 12, the auxiliary brake of the eddy current retarder 14 and the wet multi-disc brake work simultaneously, so that the vehicle can be braked and stopped in the shortest time.
The vehicle controller is the third controller of the present invention, and the motor controller is the first controller of the present invention.
The second embodiment is as follows:
fig. 7 is one of the flow charts of the control method of the vehicle brake control system according to one embodiment of the invention. The control method comprises the following steps:
step 708, judging whether the rotating speed of the motor is 0; if yes, go to step 706, if no, go to step 710;
714, receiving a target rotating speed of the motor by the MCU;
722, starting eddy current brake, and sending the magnitude of input current;
In this embodiment, the second threshold is-0.4 g and the first threshold is-0.1 g. The VCU is a vehicle controller, namely a third controller of the invention, and the MCU is a first controller.
In the description herein, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance unless explicitly stated or limited otherwise; the terms "connected," "mounted," "secured," and the like are to be construed broadly and include, for example, fixed connections, removable connections, or integral connections; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the description herein, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A vehicle brake control system, comprising:
a motor;
a vortex retarder;
an input device;
a battery assembly;
a control device;
the motor is connected with the eddy current retarder, and the motor and the eddy current retarder are respectively connected with the battery assembly;
the control device is connected with the motor, the eddy current retarder, the battery assembly and the input device, and is used for acquiring the current rotating speed of the motor and the electric quantity of the battery assembly, determining the target rotating speed of the motor according to an input signal of the input device, determining the acceleration according to the current rotating speed of the motor and the target rotating speed of the motor, and controlling the motor and/or the eddy current retarder to brake according to the electric quantity of the battery assembly and the acceleration.
2. The vehicle brake control system according to claim 1, characterized by further comprising:
a parking brake device;
and the control device is connected with the parking brake device and is used for controlling the parking brake device to brake under the condition that the rotating speed of the motor is reduced to zero or an emergency brake instruction of an input device is received.
3. The vehicle brake control system according to claim 2,
the vehicle brake control system comprises a speed reducer, and the speed reducer is connected with the eddy current retarder;
the parking brake device includes:
the parking unit is connected with the speed reducer;
and the electro-hydraulic unit is connected with the parking unit and is used for providing braking energy for the parking unit.
4. The vehicle brake control system according to any one of claims 1 to 3, wherein the controlling the electric machine and/or the eddy current retarder to brake according to the electric quantity of the battery assembly and the acceleration specifically comprises:
when the electric quantity of the battery assembly is smaller than or equal to a preset value, the acceleration is larger than a first threshold value and smaller than zero, the motor is controlled to brake;
when the electric quantity of the battery assembly is smaller than or equal to the preset value, and the acceleration is larger than or equal to a second threshold value and smaller than or equal to the first threshold value, controlling the motor and the eddy current retarder to brake;
controlling the eddy current retarder to brake when the electric quantity of the battery assembly is larger than the preset value or the acceleration is smaller than the second threshold value;
wherein the second threshold is less than the first threshold, which is less than zero.
5. The vehicle brake control system according to claim 3, characterized in that the battery assembly includes:
a storage battery;
the power battery is respectively connected with the storage battery and the motor and used for supplying power to the storage battery, supplying energy to the motor and receiving regenerative energy fed back by the motor;
the storage battery is respectively connected with the eddy current retarder and the electric hydraulic unit, and the storage battery is used for supplying power to the eddy current retarder and the electric hydraulic unit.
6. The vehicle brake control system according to claim 5, characterized in that the control device includes:
the first controller is connected with the motor and used for responding to a first braking instruction and controlling the motor to brake;
the second controller is connected with the eddy current retarder and used for responding to a second braking instruction and controlling the eddy current retarder to brake;
and the third controller is used for acquiring the current rotating speed of the motor and the electric quantity of the power battery, determining the target rotating speed of the motor according to an input signal of the input device, determining acceleration according to the target rotating speed and the current rotating speed under the condition that the target rotating speed is less than the current rotating speed, and generating a corresponding first braking instruction and/or a second braking instruction according to the acceleration and the electric quantity of the power battery.
7. A vehicle comprising a vehicle body, characterized in that the vehicle body is provided with a vehicle brake control system according to any one of claims 1 to 6.
8. A control method of a vehicle brake control system including an electric machine, an eddy current retarder, an input device, and a battery assembly, the control method comprising:
acquiring the current rotating speed of the motor and the electric quantity of the battery pack;
determining a target rotating speed of the motor according to an input signal of the input device;
determining acceleration according to the current rotating speed of the motor and the target rotating speed of the motor, and controlling the motor and/or the eddy current retarder to brake according to the electric quantity of the battery assembly and the acceleration.
9. The control method of the vehicle brake control system according to claim 8, wherein the step of controlling the motor and/or the eddy current retarder to brake according to the electric quantity of the battery assembly and the acceleration specifically comprises:
when the electric quantity of the battery assembly is smaller than or equal to a preset value, the acceleration is larger than a first threshold value and smaller than zero, the motor is controlled to brake;
when the electric quantity of the battery assembly is smaller than or equal to the preset value, and the acceleration is larger than or equal to a second threshold value and smaller than or equal to the first threshold value, controlling the motor and the eddy current retarder to brake;
controlling the eddy current retarder to brake under the condition that the electric quantity of the battery pack is larger than the preset value or the acceleration is smaller than the second threshold value;
wherein the second threshold is less than the first threshold, which is less than zero.
10. The control method of a vehicle brake control system according to claim 8 or 9, characterized in that the vehicle brake control system further includes a parking brake device, the control method further comprising:
and controlling the parking brake device to brake under the condition that the rotating speed of the motor is reduced to zero or an emergency braking instruction of an input device is received.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110912718.8A CN113619549A (en) | 2021-08-10 | 2021-08-10 | Vehicle brake control system, vehicle, and control method of vehicle brake control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110912718.8A CN113619549A (en) | 2021-08-10 | 2021-08-10 | Vehicle brake control system, vehicle, and control method of vehicle brake control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113619549A true CN113619549A (en) | 2021-11-09 |
Family
ID=78383897
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110912718.8A Pending CN113619549A (en) | 2021-08-10 | 2021-08-10 | Vehicle brake control system, vehicle, and control method of vehicle brake control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113619549A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102848926A (en) * | 2012-10-10 | 2013-01-02 | 江苏大学 | Anti-lock control method for vehicle braked by eddy current retarder and main brake together |
| CN106627170A (en) * | 2016-12-28 | 2017-05-10 | 安徽安凯汽车股份有限公司 | Control method of double-source auxiliary braking control system for hybrid electric bus |
| CN107323459A (en) * | 2017-06-23 | 2017-11-07 | 东风商用车有限公司 | A kind of driving behavior recognition sensor and its recognition methods |
| CN111674263A (en) * | 2020-06-01 | 2020-09-18 | 浙江吉利新能源商用车集团有限公司 | Auxiliary braking method and system for vehicle |
| US20200317060A1 (en) * | 2016-05-25 | 2020-10-08 | Jaguar Land Rover Limited | Apparatus, system and method for braking |
| CN112141066A (en) * | 2020-11-03 | 2020-12-29 | 吉林大学 | Integrated electronic control brake system of new energy automobile |
| WO2021115566A1 (en) * | 2019-12-10 | 2021-06-17 | Volvo Truck Corporation | A method for controlling auxiliary braking by a vehicle |
-
2021
- 2021-08-10 CN CN202110912718.8A patent/CN113619549A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102848926A (en) * | 2012-10-10 | 2013-01-02 | 江苏大学 | Anti-lock control method for vehicle braked by eddy current retarder and main brake together |
| US20200317060A1 (en) * | 2016-05-25 | 2020-10-08 | Jaguar Land Rover Limited | Apparatus, system and method for braking |
| CN106627170A (en) * | 2016-12-28 | 2017-05-10 | 安徽安凯汽车股份有限公司 | Control method of double-source auxiliary braking control system for hybrid electric bus |
| CN107323459A (en) * | 2017-06-23 | 2017-11-07 | 东风商用车有限公司 | A kind of driving behavior recognition sensor and its recognition methods |
| WO2021115566A1 (en) * | 2019-12-10 | 2021-06-17 | Volvo Truck Corporation | A method for controlling auxiliary braking by a vehicle |
| CN111674263A (en) * | 2020-06-01 | 2020-09-18 | 浙江吉利新能源商用车集团有限公司 | Auxiliary braking method and system for vehicle |
| CN112141066A (en) * | 2020-11-03 | 2020-12-29 | 吉林大学 | Integrated electronic control brake system of new energy automobile |
Non-Patent Citations (1)
| Title |
|---|
| 段敏: "《电动汽车技术》", 30 September 2015, 北京理工大学出版社 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR100419937B1 (en) | Regenerative control apparatus of hybrid electric vehicle | |
| CN101683851B (en) | Control apparatus for hybrid vehicle setting clutch pressure | |
| CN102039891B (en) | The control setup of motor vehicle driven by mixed power | |
| CN101746261B (en) | Flywheel driveline and control arrangement | |
| CN102802996B (en) | Regenerative brake system reset feature and adaptive calibration for hybrid and electric vehicles | |
| CN101332774B (en) | Automobile brake energy regeneration control method | |
| CN103260982B (en) | The engine start control device of motor vehicle driven by mixed power | |
| CN107009903B (en) | Hybrid power tractor braking system with retarder and control method thereof | |
| CN102060016A (en) | Regenerative braking torque compensation device, method for regenerative braking torque compensation and a hybrid vehicle embodying such device and method | |
| KR101272515B1 (en) | Auto cruise control method for electric vehicle | |
| CN101643034A (en) | Vehicle deceleration rate control method and apparatus | |
| CN101445038A (en) | Control apparatus of a hybrid vehicle | |
| KR20190136353A (en) | Brake system and controlling method thereof | |
| CN104512410A (en) | Control method for four-wheel drive hybrid electric vehicle | |
| CN102019842A (en) | Hydraulic hybrid electric vehicle transmission system and control method thereof | |
| CN103991374A (en) | Hybrid power vehicle system based on dual-rotor motor power coupler and control switching method of hybrid power vehicle system | |
| CN101386303A (en) | Motor drive control method for hybrid power automobile | |
| CN103072461A (en) | Dual-motor multi-mode hybrid power driving system and control method thereof | |
| JP2010508211A (en) | Hybrid vehicle control method and hybrid vehicle for charging electrical energy storage means | |
| CN110962616B (en) | Vehicle composite energy system integrating hydraulic power and battery and control method thereof | |
| CN109466525B (en) | Braking force distribution method and system for trolley bus | |
| JP5880081B2 (en) | Vehicle drive device | |
| JP5485504B2 (en) | Hybrid work vehicle | |
| CN201030800Y (en) | Motor feedback braking and air-pressure brake combination controlled braking arrangement | |
| CN109693548B (en) | Energy recycling system capable of recycling braking energy |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20211109 |