EP3966078A1 - Verfahren, steuergerät und system zum stabilisieren eines fahrzeugs - Google Patents
Verfahren, steuergerät und system zum stabilisieren eines fahrzeugsInfo
- Publication number
- EP3966078A1 EP3966078A1 EP20712860.4A EP20712860A EP3966078A1 EP 3966078 A1 EP3966078 A1 EP 3966078A1 EP 20712860 A EP20712860 A EP 20712860A EP 3966078 A1 EP3966078 A1 EP 3966078A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- vehicle
- axle
- control device
- axis
- transverse acceleration
- 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.)
- Ceased
Links
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W30/00—Purposes of road vehicle drive control systems not related to the control of a particular sub-unit, e.g. of systems using conjoint control of vehicle sub-units
- B60W30/02—Control of vehicle driving stability
- B60W30/045—Improving turning performance
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W10/00—Conjoint control of vehicle sub-units of different type or different function
- B60W10/119—Conjoint control of vehicle sub-units of different type or different function including control of all-wheel-driveline means, e.g. transfer gears or clutches for dividing torque between front and rear axle
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W10/00—Conjoint control of vehicle sub-units of different type or different function
- B60W10/20—Conjoint control of vehicle sub-units of different type or different function including control of steering systems
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W10/00—Conjoint control of vehicle sub-units of different type or different function
- B60W10/22—Conjoint control of vehicle sub-units of different type or different function including control of suspension systems
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W30/00—Purposes of road vehicle drive control systems not related to the control of a particular sub-unit, e.g. of systems using conjoint control of vehicle sub-units
- B60W30/02—Control of vehicle driving stability
- B60W30/04—Control of vehicle driving stability related to roll-over prevention
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W40/00—Estimation or calculation of non-directly measurable driving parameters for road vehicle drive control systems not related to the control of a particular sub unit, e.g. by using mathematical models
- B60W40/10—Estimation or calculation of non-directly measurable driving parameters for road vehicle drive control systems not related to the control of a particular sub unit, e.g. by using mathematical models related to vehicle motion
- B60W40/101—Side slip angle of tyre
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W40/00—Estimation or calculation of non-directly measurable driving parameters for road vehicle drive control systems not related to the control of a particular sub unit, e.g. by using mathematical models
- B60W40/10—Estimation or calculation of non-directly measurable driving parameters for road vehicle drive control systems not related to the control of a particular sub unit, e.g. by using mathematical models related to vehicle motion
- B60W40/103—Side slip angle of vehicle body
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W40/00—Estimation or calculation of non-directly measurable driving parameters for road vehicle drive control systems not related to the control of a particular sub unit, e.g. by using mathematical models
- B60W40/10—Estimation or calculation of non-directly measurable driving parameters for road vehicle drive control systems not related to the control of a particular sub unit, e.g. by using mathematical models related to vehicle motion
- B60W40/105—Speed
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W40/00—Estimation or calculation of non-directly measurable driving parameters for road vehicle drive control systems not related to the control of a particular sub unit, e.g. by using mathematical models
- B60W40/10—Estimation or calculation of non-directly measurable driving parameters for road vehicle drive control systems not related to the control of a particular sub unit, e.g. by using mathematical models related to vehicle motion
- B60W40/109—Lateral acceleration
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W40/00—Estimation or calculation of non-directly measurable driving parameters for road vehicle drive control systems not related to the control of a particular sub unit, e.g. by using mathematical models
- B60W40/10—Estimation or calculation of non-directly measurable driving parameters for road vehicle drive control systems not related to the control of a particular sub unit, e.g. by using mathematical models related to vehicle motion
- B60W40/114—Yaw movement
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W30/00—Purposes of road vehicle drive control systems not related to the control of a particular sub-unit, e.g. of systems using conjoint control of vehicle sub-units
- B60W30/02—Control of vehicle driving stability
- B60W30/04—Control of vehicle driving stability related to roll-over prevention
- B60W2030/043—Control of vehicle driving stability related to roll-over prevention about the roll axis
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2510/00—Input parameters relating to a particular sub-units
- B60W2510/20—Steering systems
- B60W2510/207—Oversteer or understeer
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2520/00—Input parameters relating to overall vehicle dynamics
- B60W2520/10—Longitudinal speed
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2520/00—Input parameters relating to overall vehicle dynamics
- B60W2520/12—Lateral speed
- B60W2520/125—Lateral acceleration
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2520/00—Input parameters relating to overall vehicle dynamics
- B60W2520/14—Yaw
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2520/00—Input parameters relating to overall vehicle dynamics
- B60W2520/20—Sideslip angle
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2710/00—Output or target parameters relating to a particular sub-units
- B60W2710/18—Braking system
- B60W2710/182—Brake pressure, e.g. of fluid or between pad and disc
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2710/00—Output or target parameters relating to a particular sub-units
- B60W2710/20—Steering systems
- B60W2710/207—Steering angle of wheels
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2710/00—Output or target parameters relating to a particular sub-units
- B60W2710/22—Suspension systems
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2720/00—Output or target parameters relating to overall vehicle dynamics
- B60W2720/20—Sideslip angle
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2720/00—Output or target parameters relating to overall vehicle dynamics
- B60W2720/40—Torque distribution
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W30/00—Purposes of road vehicle drive control systems not related to the control of a particular sub-unit, e.g. of systems using conjoint control of vehicle sub-units
- B60W30/02—Control of vehicle driving stability
Definitions
- the present invention relates to a method for stabilizing a vehicle, to a corresponding control device and to a system for stabilizing a vehicle.
- a system that influences vehicle behavior is, for example, the so-called electronic stability program (ESP).
- ESP electronic stability program
- the ESP can influence the vehicle behavior by actuating the individual wheel brakes, whereby a vehicle speed can be reduced.
- ERC Electronic Mechanical Roll Control
- the so-called ERC influences vehicle behavior by shifting the rolling moment of a vehicle body and the resulting wheel contact forces.
- DE 10 2009 007 357 A1 relates to a method for controlling an active chassis of a two-axle two-lane motor vehicle.
- the present invention creates an improved method for stabilizing a vehicle, an improved control device and an improved system for stabilizing a vehicle according to the main claims.
- a control or regulation of an electronic or electromechanical roll stabilizer for a vehicle can be implemented in order to influence yaw behavior of the vehicle by dynamically adapting the chassis properties using the roll stabilizer.
- an adjustable roll stabilizer can be controlled in such a way that a roll moment is dynamically distributed or shifted between the front and rear axles.
- wheel contact forces can be shifted in a defined manner, whereby the yaw behavior of the vehicle can be influenced.
- a Float angle index can be determined, depending on which a roll torque distribution of the roll stabilizer can be set or shifted between the front axle and rear axle.
- an active stabilizer can be used to stabilize a vehicle in oversteer and understeer situations with the aid of a float angle detection.
- the vehicle can advantageously be dampened or reinforced in its yaw behavior in different driving situations, in particular without using another stabilization device.
- An oversteer behavior of the vehicle which can be viewed as critical to safety in a production road vehicle, can occur in different dynamic driving situations and their environmental influences, e.g. B. load, tire condition, road condition, Lenkverhal th and acceleration can be influenced.
- the yaw behavior of the vehicle can be advantageously influenced by dynamically adapting chassis properties via suitable control of an electromechanical stabilizer.
- brake and tire wear can also be avoided in the course of stabilization.
- a method for stabilizing a vehicle having a roll stabilizer which is designed to stabilize a first axis and a second axis of the vehicle depending on a roll moment distribution between the first axis and the second axis, the process being used a step of determining a slip angle index from a deviation between a transverse acceleration of the vehicle calculated from a yaw rate of the vehicle and a speed of the vehicle and a detected transverse acceleration of the vehicle, the slip angle index being related to a slip angle of the vehicle , and a step of generating a control signal using the slip angle index, the control signal being suitable for setting the roll moment distribution of the roll stabilizer as a function of the specific slip angle index.
- the vehicle can be a motor vehicle for transporting people and / or goods, in particular a car, a truck or another commercial vehicle.
- the roll stabilizer can be madebil det in order to stabilize the first axle and the second axle of the control signal to exert forces on each of the axles associated suspension.
- the roll moment distribution can define a distribution of forces that can be exerted by the roll stabilizer on wheel suspensions of the first axle and the second axle.
- the first axis can be a front axle of the vehicle.
- the second axle can be a rear axle of the vehicle.
- the yaw rate and the speed can be measured by means of measuring devices.
- the transverse acceleration can be detected by means of a detection device.
- the method can be carried out by means of a control device, more precisely by means of suitable devices of a control device.
- the control signal can be generated as a correction factor for the rolling torque distribution.
- the rolling torque distribution can be set using a setting rule. For example, a current rolling moment distribution can be changed using the control signal, or the rolling moment distribution can be set using the control signal. This means that a total support torque can be redistributed cyclically to the rear axle and front axle in order to ensure both continuity and stability in highly dynamic, complex driving situations.
- control signal can be generated in order to set a time profile of the rolling torque distribution.
- step of determining and the step of generating can be carried out repeatedly and, in addition or alternatively, continuously.
- the control signal generated in the generation step can be suitable for setting the temporal course of the rolling moment distribution in such a way that the temporal course rises, starting from a default value, to a maximum value, the is held for an adjustable period of time, and then drops back to the default value.
- the default value can represent, for example, a predetermined distribution of the wheel contact forces between the front axle and the rear axle for a normal driving situation.
- the maximum value can represent a given distribution of the wheel contact forces between the front axle and the rear axle for a critical driving situation.
- the maximum value can define a maximally adjustable displacement of the wheel contact forces based on a distribution of the wheel contact forces defined by the default value.
- the maximum value can also be a maximum value resulting from a current vehicle dynamics control.
- the period of time for which the maximum value is held can be fixed once for a vehicle or, for example, continuously adapted using a learning process, for example to a driving behavior of a driver of the vehicle. Such an embodiment offers the advantage that the vehicle can be stabilized robustly.
- the float angle index can correspond to the float angle or a temporal course of the float angle.
- the float angle index can be a variable derived from the float angle.
- the float angle index can have a known or defined relationship with the float angle.
- the time course of the sideslip angle can also be referred to as a change in the sideslip angle as a function of time.
- the float angle index can be determined from the change in the float angle as a function of time.
- An absolute value of the float angle can be used to determine the float angle index. Such an embodiment offers the advantage that a complex determination of the sideslip angle can be omitted and a reliable stabilization of the vehicle can still be achieved.
- the method can have a step of providing the control signal for output to an interface to the roll stabilizer or to the roll stabilizer and at least one further vehicle dynamics control device.
- the at least one further vehicle dynamics control device can include an active damper device, an active spring device, a steering device for the first axle and additionally or alternatively for the second axle, a transverse axle lock, a dynamic all-wheel drive, a switchable coupling rod, an active ball joint and additionally or alternatively the like.
- the method can have a step of calculating the lateral acceleration of the vehicle as a product of a measured yaw rate of the vehicle and a measured speed of the vehicle in order to provide the calculated lateral acceleration.
- the calculated transverse acceleration can represent a reference transverse acceleration in the case of stationary circular travel without any transverse acceleration occurring at a float angle.
- the method can also have a step of reading in the transverse acceleration of the vehicle from a detection device in order to provide the detected transverse acceleration.
- the measured yaw rate of the vehicle and the measured speed of the vehicle can also be read in by respective measuring devices.
- control device which is designed to carry out, control or implement the steps of a variant of a method presented here in corresponding devices.
- This embodiment variant of the invention in the form of a control device also enables the object on which the invention is based to be achieved quickly and efficiently.
- the control device can have at least one processing unit for processing signals or data, at least one memory unit for storing signals or data, at least one interface to a sensor or an actuator for reading in sensor signals from the sensor or for outputting control signals to the actuator and / or have at least one communication interface for reading in or outputting data that is embedded in a communication protocol.
- the computing unit can be, for example, a signal processor, a microcontroller or the like, wherein the storage unit can be a flash memory, an EEPROM or a magnetic storage unit.
- the communication interface can be designed to read in or output data wirelessly and / or wired, a communication interface that can input or output wired data, for example, feed this data electrically or optically from a corresponding data transmission line or output it into a corresponding data transmission line.
- a control device can be understood to mean an electrical device that processes sensor signals and outputs control and / or data signals as a function thereof.
- the control device can have an interface that can be designed in terms of hardware and / or software.
- the interfaces can, for example, be part of a so-called system ASIC, which contains a wide variety of functions of the control unit.
- the interfaces are separate, integrated circuits or at least partially consist of discrete components.
- the interfaces can be software modules that are present, for example, on a microcontroller alongside other software modules.
- a system for stabilizing a vehicle is also presented, the system being a roll stabilizer which is designed to stabilize a first axis and a second axis of the vehicle as a function of a roll moment distribution between the first axis and the second axis, and an embodiment Has approximate form of the aforementioned control device, wherein the control device is capable of signal transmission with the roll stabilizer or is connected.
- an embodiment of the above-mentioned control device can advantageously be used or used to control the roll stabilizer using the control signal.
- the system can also have at least one further driving dynamics control device.
- the control device can be able to transmit signals or be connected to the at least one further vehicle dynamics control device.
- the at least one further driving dynamics control device can include an active damper device, an active spring device, a steering device for the first axle and additionally or alternatively for the second axle, a transverse axle lock, a dynamic all-wheel drive, a switchable coupling rod, an active ball joint and additionally or alternatively the like his.
- Such an embodiment offers the advantage that, depending on its existing devices, the vehicle can be stabilized either in a particularly simple manner by means of the roll stabilizer or in a particularly robust manner in addition to the roll stabilizer also by means of the at least one further vehicle dynamics control device.
- FIG. 1 shows a schematic illustration of a vehicle with a system according to an exemplary embodiment
- FIG. 2 shows a schematic representation of the control device from FIG. 1; FIG. and
- Fig. 3 is a flow chart of a method for stabilization according to an Ausry approximately example.
- Fig. 1 shows a schematic representation of a vehicle 100 with a system 1 10 for stabilizing the vehicle 100 according to an embodiment.
- the vehicle 100 is a motor vehicle for transporting people and / or goods, in particular a passenger car or a utility vehicle.
- a region of a first axis 101, a region of a second axis 102, a first measuring device 104 for measuring a yaw rate of the vehicle 100, and a second measuring device 106 for measuring a speed of the vehicle are of the vehicle 100 100 and a detection device 108 for detecting a lateral acceleration of the vehicle 100 are shown.
- the first axle 101 is, for example, a front axle of the vehicle 100.
- the second axle 102 is, for example, a rear axle of the vehicle 100.
- the first measuring device 104 is designed to measure the yaw rate of the vehicle 100 and to provide a first measurement signal 105 which represents the measured yaw rate.
- the second measuring device 106 is designed to measure the speed of the vehicle 100 and to provide a second measurement signal 107 which represents the measured speed.
- the detection device 108 is designed to detect the transverse acceleration of the vehicle 100 and to provide a detection signal 109 which represents the detected transverse acceleration.
- the vehicle 100 also has the system 110 for stabilization.
- the system 110 has a roll stabilizer 120 and a control unit 140.
- the roll stabilizer 120 is designed to stabilize the first axle 101 and the second axle 102 or a stabilization of the vehicle 100 with regard to the first axle 101 and the second axle 102 as a function of a rolling moment distribution between the first axle 101 and the second axle 102 to effect second axis 102.
- the roll stabilizer 120 has, merely by way of example, a central unit, an axle unit assigned to the first axle 101 and an axle unit assigned to the second axle 102.
- the control unit 140 is able to transmit signals to the roll stabilizer 120 a related party.
- the control unit 140 is designed to control the roll stabilizer 120.
- control device 140 is designed to generate a control signal 160 for controlling the roll stabilizer 120 using the first measurement signal 105, the second measurement signal 107 and the detection signal 109.
- control signal 160 can be transmitted from the control device 140 to the roll stabilizer 120 via an interface 150.
- the control signal 160 is suitable for adjusting the roll moment distribution of the roll stabilizer 120.
- the control unit 140 will be discussed in greater detail with reference to the following figures.
- the roll stabilizer 120 is designed to use the control signal 160 to set the amount of the wheel contact forces acting on the wheels of the first axle 101 and the amount of the wheel contact forces acting on the wheels of the second axle 102, or designed to use the control signal 160 to set a ratio between the wheel contact forces acting on the wheels of the first axle 101 and the wheel contact forces acting on the wheels of the second axle 102.
- the system 110 has at least one further driving dynamics control device 130.
- the control unit 140 is able to transmit signals to the at least one further vehicle dynamics control device 130 connected.
- the control signal 160 from the control device 140 can also be transmitted to the at least one further vehicle dynamics control device 130 via the interface 150.
- a further driving dynamics control device 130 is shown for reasons of space and only as an example.
- the at least one further driving dynamics control device 130 is, for example, an active damper device, an active spring device, a steering device for the first axle 101 and / or the second axle 102, a transverse axle lock, a dynamic all-wheel drive, a switchable coupling rod, an active ball joint and / or the like out leads.
- the further driving dynamics control device 130 is designed to use the actuation signal 160 for setting at least one operating parameter of the further driving dynamics control device 130.
- the control signal 160 is used to determine a damping behavior of a first damper device assigned to the first axis 101 and a damping behavior of one of the second axis 102 assigned second damper device and / or a spring behavior of a first spring device assigned to the first axis 101 and a spring behavior of a second spring device assigned to the second axis 102.
- the control signal 160 is used according to an embodiment to set a drive distribution of an all-wheel drive of the vehicle 100 between the first axle 101 and the second axle 102. Such measures can additionally optimize the driving dynamics of vehicle 100.
- roll stabilizer 120 which is also referred to as electrical or electromechanical roll stabilization (ERC) is designed to dynamically shift a roll moment between first axle 101 and second axle 102.
- EEC electrical or electromechanical roll stabilization
- wheel contact forces between the wheels of the first axle 101 and the second axle 102 are displaced in a defined manner, whereby a yaw behavior of the vehicle 100 can be influenced.
- the displacement of the wheel contact forces is carried out using the control signal 160.
- the lateral acceleration is calculated using the measured yaw rate and vehicle speed.
- the lateral acceleration is calculated as the product of the measured yaw rate and the measured speed.
- This relation is valid for stationary circular travel of the vehicle 100 without a float angle. Therefore, an error in this relation describes the swimming angle.
- This error is determined from the deviation between the calculated transverse acceleration and the detected transverse acceleration, ie, for example, between a calculation signal described with reference to FIG. 2 and the detection signal 109, and serves as a float angle index.
- the roll torque distribution is shifted by a correspondingly generated control signal 160.
- a profile of the control signal 160 follows a so-called “PeakHold and RampDown” function according to an exemplary embodiment. This holds a peak value for an applicable period of time and then sings to an original value back.
- the peak value can be a fixed, predetermined maximum value or a currently reached maximum value.
- the original value can be a preset value predetermined for an operating mode of vehicle 100.
- control signal 160 can also only be output to the at least one further driving dynamics control device 130. In this case, no rolling moment distribution is carried out.
- FIG. 2 shows a schematic illustration of control device 140 from FIG. 1 according to an exemplary embodiment.
- the control unit 140 is designed to execute the method described with reference to FIG. 3 or a similar method.
- the control device 140 has a determination device 244 and a generation device 246.
- the control device 140 optionally also has a reading device 241, a computing device 242 and a supply device 248.
- the read-in device 241 is designed to read in the detection signal 109, which represents the detected transverse acceleration of the vehicle, from the detection device.
- Read-in device 241 is also designed to read in first measurement signal 105, which represents the measured yaw rate of the vehicle, and second measurement signal 107, which represents the measured speed of the vehicle. Furthermore, the read-in device 241 is designed to forward the first measurement signal 105 and the second measurement signal 107 to the calculation device 242.
- the read-in device 241 is also designed to forward the detection signal 109 to the determination device 244.
- the calculation device 242 is designed to generate a calculation signal 243, which represents the calculated transverse acceleration of the vehicle, using the first measurement signal 105 and the second measurement signal 107 and a calculation rule.
- the calculation device 242 is designed to calculate the lateral acceleration of the vehicle as a product of the measured yaw rate of the vehicle and the measured speed of the vehicle in order to provide the calculated transverse acceleration represented by the calculation signal 243.
- the calculated transverse acceleration represents a reference transverse acceleration during stationary circular travel without any transverse acceleration occurring.
- the calculation device 242 is also designed to forward the calculation signal 243 to the determination device 244.
- the determination device 244 is designed to determine a float angle index 245 using the detection signal 109 and the calculation signal 243 as well as a determination rule. In other words, the determination device 244 is designed to determine the slip angle index 245 from a deviation between a transverse acceleration of the vehicle calculated from a yaw rate of the vehicle and a speed of the vehicle and a detected transverse acceleration of the vehicle.
- the float angle index 245 is related, in particular a known or defined relationship, to a float angle of the vehicle.
- the determination device 244 is designed to output the float angle index 245 to the generating device 246 or to make it available for output to this.
- the generating device 246 is designed to use the
- the control signal 160 is suitable for adjusting the roll moment distribution of the roll stabilizer as a function of the specific float angle index 245.
- the generating device 246 is also designed to forward the control signal 160 to the providing device 248.
- the provision device 248 is designed to provide the control signal 160 for output to the interface 150 to the roll stabilizer or to the at least one further vehicle dynamics control device.
- the drive signal 160 can thus be used in the roll stabilizer in order to set the roll torque distribution to be effected by the roll stabilizer.
- the control signal from the further vehicle dynamics control device can be are applied in order to set at least one parameter of a driving dynamics control to be carried out by the further driving dynamics control device.
- FIG. 3 shows a flow chart of a method 300 for stabilizing according to an exemplary embodiment.
- the method 300 can be carried out to stabilize a vehicle.
- the method 300 for stabilization can be carried out in connection with a roll stabilizer which is designed to stabilize a first axis and a second axis of the vehicle depending on a roll moment distribution between the first axis and the second axis.
- the method 300 for stabilizing can be carried out using the control device from one of the figures described above or a similar control device.
- the method 300 for stabilizing has a step 310 of determining a slip angle index from a deviation between a transverse acceleration of the vehicle calculated from a yaw rate of the vehicle and a speed of the vehicle and a detected transverse acceleration of the vehicle.
- the float angle index is related to a float angle of the vehicle.
- a float angle index is determined which corresponds to the float angle and / or corresponds to a time profile of the float angle and / or is a variable derived from the float angle.
- the method 300 for stabilizing also has a step 320 of generating a control signal using the float angle index determined in the step 310 of determining.
- the control signal is suitable for setting the roll moment distribution of the roll stabilizer as a function of the specific float angle index.
- a control signal is generated that is suitable for setting a course of the rolling torque distribution.
- the control signal generated in step 320 of generating is suitable for setting the course of the rolling torque distribution so that the course rises from a default value to a maximum value that is held for an adjustable period of time, and then back to the default value drops.
- the method 300 for stabilizing also has a step 330 of reading in and / or a step 340 of calculating and / or a step 350 of providing.
- Step 330 of reading in and step 340 of calculating can be carried out before step 310 of determining.
- the provision step 350 can be carried out after the generation step 320.
- step 330 of reading in the transverse acceleration of the vehicle is read in by a detection device in order to provide the detected transverse acceleration.
- a measured yaw rate of the vehicle and a measured speed of the vehicle are also read in by measuring devices of the vehicle.
- the lateral acceleration of the vehicle is calculated as a product of a measured yaw rate of the vehicle and a measured speed of the vehicle in order to provide the calculated lateral acceleration.
- the calculated transverse acceleration represents a reference transverse acceleration during stationary circular travel without a side slip angle occurring transverse acceleration.
- step 350 of providing the control signal generated in step 320 of generating is made available for output to an interface to the roll stabilizer and in addition or as an alternative to at least one further vehicle dynamics control device.
- the at least one further driving dynamics control device is an active damper device, an active spring device, a steering device for the first axle and / or the second axle, a transverse axle lock, a dynamic all-wheel drive, a switchable coupling rod, an active ball joint and / or the like.
- control signal is used to control the driving dynamics of the vehicle.
- control signal is used by the roll stabilizer to set the roll torque distribution.
- control signal from the at least At least one further driving dynamics control device is used to set a parameterization of the at least one further driving dynamics control device.
- an exemplary embodiment comprises a “and / or” link between a first feature and a second feature
- this can be read in such a way that the exemplary embodiment according to one embodiment has both the first feature and the second feature and, according to a further embodiment, either only that has the first feature or only the second feature.
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- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Automation & Control Theory (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Mathematical Physics (AREA)
- Vehicle Body Suspensions (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102019206738.7A DE102019206738A1 (de) | 2019-05-09 | 2019-05-09 | Verfahren, Steuergerät und System zum Stabilisieren eines Fahrzeugs |
| PCT/EP2020/055788 WO2020224826A1 (de) | 2019-05-09 | 2020-03-05 | Verfahren, steuergerät und system zum stabilisieren eines fahrzeugs |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP3966078A1 true EP3966078A1 (de) | 2022-03-16 |
Family
ID=69903106
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP20712860.4A Ceased EP3966078A1 (de) | 2019-05-09 | 2020-03-05 | Verfahren, steuergerät und system zum stabilisieren eines fahrzeugs |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US12246702B2 (de) |
| EP (1) | EP3966078A1 (de) |
| CN (1) | CN113767044B (de) |
| DE (1) | DE102019206738A1 (de) |
| WO (1) | WO2020224826A1 (de) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102020200504B4 (de) * | 2020-01-16 | 2025-11-20 | Zf Friedrichshafen Ag | Vorrichtung und Verfahren zum Steuern eines Fahrwerks eines Fahrzeugs |
| WO2022080212A1 (ja) * | 2020-10-15 | 2022-04-21 | Ntn株式会社 | 車両姿勢制御装置および車両 |
| JP2022191875A (ja) * | 2021-06-16 | 2022-12-28 | Ntn株式会社 | 車両運動制御装置、車両運動制御システムおよび車両 |
| CN114707915B (zh) * | 2022-06-06 | 2022-08-12 | 苏交科集团股份有限公司 | 一种车辆运输的风险评估系统及方法 |
| CN116341093A (zh) * | 2022-11-21 | 2023-06-27 | 神龙汽车有限公司 | 一种整车加速最大横向抖动评价方法 |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19753205C2 (de) * | 1997-12-01 | 2000-07-13 | Daimler Chrysler Ag | Regelbares Aufhängungssystem in einem aktiven Fahrwerk eines Kraftfahrzeugs |
| US6834218B2 (en) * | 2001-11-05 | 2004-12-21 | Ford Global Technologies, Llc | Roll over stability control for an automotive vehicle |
| JP4511815B2 (ja) * | 2003-09-26 | 2010-07-28 | アイシン精機株式会社 | サスペンション制御装置 |
| DE102004040876A1 (de) * | 2004-03-11 | 2005-12-29 | Continental Teves Ag & Co. Ohg | Verfahren zur Fahrdynamikregelung eines Fahrzeugs, Vorrichtung zur Durchführung des Verfahrens und ihre Verwendung |
| JP2007030832A (ja) * | 2005-07-29 | 2007-02-08 | Toyota Motor Corp | 車輌の走行運動制御装置 |
| FR2900369B1 (fr) * | 2006-04-28 | 2012-08-17 | Renault Sas | Procede et dispositif de commande d'un systeme anti-roulis actif d'un vehicule automobile |
| DE102009007357B4 (de) | 2009-02-04 | 2024-01-18 | Bayerische Motoren Werke Aktiengesellschaft | Verfahren zur Ansteuerung eines aktiven Fahrwerks eines zweiachsigen zweispurigen Kraftfahrzeugs |
| DE102014109318A1 (de) * | 2014-07-03 | 2016-01-07 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Verfahren zur Einstellung eines Wankmomentes einer Achse eines Fahrzeuges für eine Wankstabilisierung |
| JP6416574B2 (ja) * | 2014-09-29 | 2018-10-31 | 日立オートモティブシステムズ株式会社 | 車両の制御方法、車両制御システム、車両制御装置、および制御プログラム |
| DE102016216825A1 (de) * | 2016-09-06 | 2018-03-08 | Zf Friedrichshafen Ag | Verfahren zur Stabilisierung des Fahrverhaltens eines Fahrzeuges |
| JP6946630B2 (ja) * | 2016-10-04 | 2021-10-06 | 株式会社ジェイテクト | 駆動力伝達装置の制御装置及び路面状態判定装置 |
-
2019
- 2019-05-09 DE DE102019206738.7A patent/DE102019206738A1/de active Pending
-
2020
- 2020-03-05 US US17/607,972 patent/US12246702B2/en active Active
- 2020-03-05 WO PCT/EP2020/055788 patent/WO2020224826A1/de not_active Ceased
- 2020-03-05 CN CN202080031811.1A patent/CN113767044B/zh active Active
- 2020-03-05 EP EP20712860.4A patent/EP3966078A1/de not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| US12246702B2 (en) | 2025-03-11 |
| DE102019206738A1 (de) | 2020-11-12 |
| US20220266817A1 (en) | 2022-08-25 |
| CN113767044A (zh) | 2021-12-07 |
| WO2020224826A1 (de) | 2020-11-12 |
| CN113767044B (zh) | 2025-02-14 |
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