公开(公告)号：US11566970B2

公开(公告)日：2023-01-31

申请号：US16769552

申请日：2018-12-03

Applicant: AVL LIST GMBH

Inventor： Felix Pfister ,  Wolfgang Winkler ,  Emre Kural ,  Camillo Signor ,  Gerald Hoehmann

IPC: G01M17/007 ,  G01M15/04 ,  G01M15/10 ,  G09B9/042 ,  G09B19/16

Abstract: Various embodiments of the present disclosure are directed to test stands for generating test runs on the basis of a test drive using a vehicle along a driving route. In some embodiments, a test stand determines at least one idle operating time of an internal combustion engine and/or at least one overrun operating time of the internal combustion engine from a time curve of a vehicle speed and a time curve of a gas pedal position. The test stand may further set a specified idle control mode instead of the operating control mode during an idle operating time and/or a specified overrun control mode is set instead of the operating control mode during an overrun operating time in the test stand automation unit in order to carry out the test run.

公开(公告)号：US20180143101A1

公开(公告)日：2018-05-24

申请号：US15536379

申请日：2015-12-22

Applicant: AVL LIST GmbH

Inventor： Felix Pfister ,  Martin Schmidt ,  Clemens Reitze

IPC: G01M17/007

CPC classification number: G01M17/0074

Abstract: To make the handling of a tire model for controlling a test run on a test bench simpler and more flexible and thus more practicable, it is provided that at least one longitudinal velocity of a tire is calculated in a first simulation unit with a first simulation model, and the longitudinal velocity is provided to a second simulation unit, and a longitudinal force and/or a rolling resistance torque of the tire are calculated with a second simulation model in the second simulation unit on the basis of the longitudinal velocity, and said longitudinal force and/or rolling resistance torque are used to calculate at least one target dyno value for a drive control unit of a load machine of the test bench.

公开(公告)号：US20200348209A1

公开(公告)日：2020-11-05

申请号：US16769552

申请日：2018-12-03

Applicant: AVL LIST GMBH

Inventor： Felix Pfister ,  Wolfgang Winkler ,  Emre Kural ,  Camillo Signor ,  Gerald Hochmann

IPC: G01M15/10 ,  G01M17/007 ,  G09B9/042 ,  G09B19/16

Abstract: Various embodiments of the present disclosure are directed to test stands for generating test runs on the basis of a test drive using a vehicle along a driving route. In some embodiments, a test stand determines at least one idle operating time of an internal combustion engine and/or at least one overrun operating time of the internal combustion engine from a time curve of a vehicle speed and a time curve of a gas pedal position. The test stand may further set a specified idle control mode instead of the operating control mode during an idle operating time and/or a specified overrun control mode is set instead of the operating control mode during an overrun operating time in the test stand automation unit in order to carry out the test run.

公开(公告)号：US20170336289A1

公开(公告)日：2017-11-23

申请号：US15329110

申请日：2015-07-24

Applicant: AVL LIST GMBH

Inventor： Felix Pfister

IPC: G01M17/007 ,  G01M13/02

CPC classification number: G01M17/0072 ,  G01M13/025 ,  G01M13/027 ,  G01M17/007

Abstract: In order to be able to test an assembly of components of a vehicle on a test stand with improved dynamics, it is provided to calculate, in a simulation unit (20) using a simulation model (21) for the at least one component of the assembly, the instantaneous drive train rotary speed (nP) of this component from a drive train torque (TP) acting in the drive train (2) and the braking effect (B) of the braking system (11), and the calculated instantaneous drive train rotary speed (nP) is used by the vehicle control device (14) for calculating the at least one component, and the calculated drive train rotary speed (nP) is used by a drive controller (23) for controlling the load machine (8).

公开(公告)号：US20150149031A1

公开(公告)日：2015-05-28

申请号：US14402235

申请日：2013-05-24

Applicant: AVL LIST GMBH

Inventor： Felix Pfister

IPC: G07C5/08

CPC classification number: G07C5/085 ,  G01M17/007

Abstract: For a method for testing a vehicle or components thereof which is as flexible as possible, it is proposed that a test control unit 3 generates or plays back a virtual world which contains both a virtual vehicle state and a virtual vehicle environment, and the test control unit 3 manipulates a number of sensors and/or actuators of the real vehicle 1 according to the requirements of the virtual world and, at the same time, activates a driving state actuator 2 according to the requirements of the virtual world, and the driving state actuator 2 generates the instantaneous vehicle state and the instantaneous vehicle environment in the virtual world by introducing additional forces or moments into the real vehicle 1 so that the real vehicle 1 experiences the vehicle state and the vehicle environment from the virtual world on the real test track 4.

Abstract translation: 对于测试尽可能灵活的车辆或其组件的方法，提出了测试控制单元3生成或重放包含虚拟车辆状态和虚拟车辆环境的虚拟世界，并且测试控制 单元3根据虚拟世界的要求操纵真实车辆1的多个传感器和/或致动器，并且同时根据虚拟世界的要求激活驱动状态致动器2和驱动状态 致动器2通过向实际车辆1引入额外的力或力矩来产生虚拟世界中的瞬时车辆状态和瞬时车辆环境，使得真实车辆1在实际测试轨迹上经历来自虚拟世界的车辆状态和车辆环境 4。

公开(公告)号：US10677687B2

公开(公告)日：2020-06-09

申请号：US16073157

申请日：2017-01-27

Applicant: AVL LIST GmbH

Inventor： Felix Pfister ,  Stefan Geneder ,  Stefan Jakubek

IPC: G01M17/007 ,  G09B9/042 ,  G01M13/02 ,  G01M15/04

Abstract: To subject a test object during a test run on a test bench to real environmental and/or surrounding conditions, particularly thermal conditions, it is provided that at least one temperature is measured at a measurement point as a measured variable during the test run on the test bench. At least one test object component of the test object is subdivided in a number of segments. The thermal interaction of at least one segment with the environment of the vehicle is simulated during the test run by a thermal simulation model of the simulation model. The thermal simulation model calculates the segment heat flow that is supplied to or dissipated from the at least one segment. This segment heat flow is adjusted as a function of the measured temperature at the test bench on at least one segment by means of a number of heat flow actuators.

公开(公告)号：US10451524B2

公开(公告)日：2019-10-22

申请号：US15329110

申请日：2015-07-24

Applicant: AVL LIST GMBH

Inventor： Felix Pfister

IPC: G01M17/007 ,  G01M13/025 ,  G01M13/027

Abstract: In order to be able to test an assembly of components of a vehicle on a test stand with improved dynamics, it is provided to calculate, in a simulation unit (20) using a simulation model (21) for the at least one component of the assembly, the instantaneous drive train rotary speed (nP) of this component from a drive train torque (TP) acting in the drive train (2) and the braking effect (B) of the braking system (11), and the calculated instantaneous drive train rotary speed (nP) is used by the vehicle control device (14) for calculating the at least one component, and the calculated drive train rotary speed (nP) is used by a drive controller (23) for controlling the load machine (8).

公开(公告)号：US10393604B2

公开(公告)日：2019-08-27

申请号：US15529888

申请日：2015-11-27

Applicant: AVL LIST GmbH

Inventor： Felix Pfister ,  Stefan Jakubek

IPC: G01L1/00 ,  G01L5/26 ,  G01M15/08 ,  F02D41/14 ,  F02D35/02 ,  G01L3/00 ,  G01M15/04

Abstract: In a test run, in order to easily provide a high-quality propulsion torque of a torque generator based on the partially low-quality measured variables available on the test bench, it is foreseen that an inner torque (Mi) of the torque generator (D) is measured and based on the measured inner torque (Mi), from an equation of motion, including the measured inner torque (Mi), a dynamic torque (Mdyn) and a shaft torque (Mw) measured on the output shaft of the torque generator (D), a correction torque ({circumflex over (M)}cor) is estimated, and from the estimated correction torque ({circumflex over (M)}cor) and the measured inner torque (Mi), the propulsion torque (Mv) according to the relation Mv={circumflex over (M)}cor+Mi is computed.

公开(公告)号：US10317312B2

公开(公告)日：2019-06-11

申请号：US14895380

申请日：2014-05-30

Applicant: AVL LIST GMBH

Inventor： Felix Pfister ,  Stefan Jakubek ,  Andreas Fleck

IPC: G01M7/02 ,  G01M13/02

Abstract: In order to reduce the excitation of vibrations and resonances in a test bed for a real component and a virtual component, one of the following method steps is provided: a) determining a first correction value (K1) from the measured variable (M), wherein the first correction value (K1) is added to the measured variable (M) and the sum is communicated as a corrected measured variable (M*) to the virtual component for calculating the control variable (S), b) determining a second correction value (K2) from the calculated control variable (S), wherein the second correction value (K2) is added to the calculated control variable (S) and the sum is transferred as a corrected control variable (S*) to the actuator, c) determining a third correction value (K3) from the measured variable (M), wherein the third correction value (K3) is used to modify a parameter (P) of the equation of movement.

公开(公告)号：US09454857B2

公开(公告)日：2016-09-27

申请号：US14402235

申请日：2013-05-24

Applicant: AVL LIST GMBH

Inventor： Felix Pfister

IPC: G07C5/08 ,  G01M17/007

CPC classification number: G07C5/085 ,  G01M17/007

Abstract: For a method for testing a vehicle or components thereof which is as flexible as possible, it is proposed that a test control unit 3 generates or plays back a virtual world which contains both a virtual vehicle state and a virtual vehicle environment, and the test control unit 3 manipulates a number of sensors and/or actuators of the real vehicle 1 according to the requirements of the virtual world and, at the same time, activates a driving state actuator 2 according to the requirements of the virtual world, and the driving state actuator 2 generates the instantaneous vehicle state and the instantaneous vehicle environment in the virtual world by introducing additional forces or moments into the real vehicle 1 so that the real vehicle 1 experiences the vehicle state and the vehicle environment from the virtual world on the real test track 4.

Abstract translation: 对于测试尽可能灵活的车辆或其组件的方法，提出了测试控制单元3生成或重放包含虚拟车辆状态和虚拟车辆环境的虚拟世界，并且测试控制 单元3根据虚拟世界的要求操纵真实车辆1的多个传感器和/或致动器，并且同时根据虚拟世界的要求激活驱动状态致动器2和驱动状态 致动器2通过向实际车辆1引入额外的力或力矩来产生虚拟世界中的瞬时车辆状态和瞬时车辆环境，使得真实车辆1在实际测试轨迹上经历来自虚拟世界的车辆状态和车辆环境 4。