公开(公告)号：US20160084735A1

公开(公告)日：2016-03-24

申请号：US14891287

申请日：2014-04-21

Applicant: MEIDENSHA CORPORATION

Inventor： Takao AKIYAMA ,  Yoshimasa SAWADA ,  Nobuhiko ASAKURA

IPC: G01M15/02 ,  G01M15/04 ,  G01L3/24

CPC classification number: G01M15/02 ,  G01L3/242 ,  G01M15/04 ,  G01M15/044

Abstract: Provided is an engine bench system capable of performing a racing test with good precision. A test body is separated into an engine main body and intermediate coupling body for connecting a crankshaft and an output shaft of the dynamometer. The engine bench system is provided with: a shaft torque sensor for detecting torsional torque; a shaft torque command generation apparatus for calculating a dynamo-side shaft torque command value by summing an engine-side shaft torque command value, and a torque value proportional to the moment of inertia of the intermediate coupling body; and a shaft torque controller for generating a torque control signal on the basis of the dynamo-side shaft torque command value and the output value of the shaft torque sensor.

Abstract translation: 提供能够以高精度执行赛车测试的发动机台架系统。 测试体被分离成发动机主体和中间联接体，用于连接曲轴和测力计的输出轴。 发动机台架系统设有：用于检测扭矩的轴扭矩传感器; 轴转矩指令产生装置，用于通过将发动机侧轴转矩指令值相加和与中间联接体的惯性矩成正比的转矩值来计算发电侧轴转矩指令值; 以及轴转矩控制器，用于基于发电侧轴转矩指令值和轴转矩传感器的输出值产生转矩控制信号。

公开(公告)号：US20160139002A1

公开(公告)日：2016-05-19

申请号：US14898402

申请日：2014-06-18

Applicant: MEIDENSHA CORPORATION

Inventor： Takao AKIYAMA ,  Yoshimasa SAWADA

IPC: G01M17/007

CPC classification number: G01M17/007 ,  B60C23/061 ,  B60C99/006 ,  G01L3/02 ,  G01L3/24 ,  G01L5/26 ,  G01M13/025 ,  G01M15/044

Abstract: Provided is a testing system which is able to reproduce road surfaces in different states between both right and left tires. A testing system is provided with: a tire speed calculation unit which calculates virtual left and right tire speed values; a vehicle speed calculation unit which calculates a virtual vehicle speed value; a vehicle drive torque calculation unit which calculates left and right vehicle drive torque values; a differential torque calculation unit which calculates left and right differential torque values; and a speed control device which outputs a torque current command signal such that a deviation between a speed command value and a value detected by an encoder is eliminated. The tire speed calculation unit calculates the tire speed value on the basis of the differential torque values and the vehicle drive torque values.

Abstract translation: 提供了能够在左右轮胎之间再现不同状态的路面的测试系统。 测试系统具有：轮胎速度计算单元，其计算虚拟的左轮胎速度值和右轮胎速度值; 车速计算单元，其计算虚拟车速值; 车辆驱动扭矩计算单元，其计算左右车辆驱动转矩值; 差分转矩计算单元，其计算左右差分转矩值; 以及速度控制装置，其输出扭矩电流指令信号，使得消除了速度指令值与编码器检测到的值之间的偏差。 轮胎速度计算单元基于差动转矩值和车辆驱动转矩值来计算轮胎速度值。

公开(公告)号：US20180306674A1

公开(公告)日：2018-10-25

申请号：US15767765

申请日：2016-08-09

Applicant: MEIDENSHA CORPORATION

Inventor： Ryo KANEKO ,  Nobuhiko ASAKURA ,  Yoshimasa SAWADA

IPC: G01M17/007

CPC classification number: G01M17/0074

Abstract: An object of the present invention is to reproduce vehicle behavioral frequencies during a vehicle test that are close to those on a road. Vehicle restraining devices 1 restrain a vehicle 3 provided on a chassis dynamometer 2 and are each provided with a first attachment member 4, a support post unit 5, a second attachment member 6 and a buffer unit 7. The first attachment members 4 are attached to right and left front end portions and rear end portions of the vehicle 3. The second attachment members 6 are attached to the support post units 5. The buffer units 7 are provided between the first attachment members 4 and the second attachment members 6. Further, the buffer units 7 are filled with air and can be compressed freely.

公开(公告)号：US20160252428A1

公开(公告)日：2016-09-01

申请号：US15027932

申请日：2014-10-06

Applicant: MEIDENSHA CORPORATION

Inventor： Takao AKIYAMA ,  Yoshimasa SAWADA ,  Nobuhiko ASAKURA

IPC: G01M15/05 ,  G01L3/16

CPC classification number: G01M15/05 ,  G01L3/16 ,  G01M15/02

Abstract: Provided is a dynamometer system dynamo control device that can accurately reproduce a no-load state. The dynamo control device includes controllers that are designed, using a H-infinity control or a μ-design method, such that, for a generalized plant that outputs observation output and a controlled variable from external input and from control input, the response from the input until the variable is shortened. The generalized plant includes a dynamic characteristics model wherein the characteristics of a dynamometer system are identified such that the angular acceleration is output from the external input and the control input. The controlled variable is the difference between the angular acceleration calculated for an engine alone on the basis of the external input and the angular acceleration calculated by the dynamic characteristics model.

Abstract translation: 提供了一种能够精确地再现无负载状态的测力计系统发电机控制装置。 发电机控制装置包括使用H无限远控制或μ设计方法设计的控制器，使得对于从外部输入和控制输入输出观测输出和受控变量的广义工厂，响应来自 输入，直到变量缩短。 广义设备包括动态特性模型，其中识别测力计系统的特征，使得从外部输入和控制输入输出角加速度。 受控变量是基于外部输入单独地对发动机计算的角加速度与由动态特性模型计算的角加速度之间的差。