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1. 发明申请

US20230063634A1 ENGINE TEST METHOD, COMPUTER-READABLE RECORDING MEDIUM, AND ENGINE TEST APPARATUS 有权
公开(公告)号：US20230063634A1
公开(公告)日：2023-03-02
申请号：US17891624
申请日：2022-08-19
申请人： TRANSTRON INC.
发明人： Masatoshi OGAWA , Takuma DEGAWA
IPC分类号： G01M15/05
摘要： An engine test method that causes a computer to execute a process including, acquiring, by a processer on the computer, a first test pattern in which an operation variable that is used for an engine test is changed in time series, inputting, based on the first test pattern, a first operation variable to a mathematical model that represents a time series response of an engine obtained by inputting a test pattern as a simulation of the engine test, monitoring, as a first monitoring parameter of engine abnormality, at least one of an air excess ratio, pressure and temperature of an intake manifold, pressure and temperature of an exhaust manifold, and a maximum cylinder pressure rise rate that are obtained by inputting the first operation variable to the mathematical model, holding, when the first monitoring parameter exceeds a first threshold value, the first operation variable until the first monitoring parameter is less than the first threshold value, creating, a history of the first operation variable in the simulation as a second test pattern, monitoring, as a second monitoring parameter, at least one of the air excess ratio, the pressure and the temperature of the intake manifold, the pressure and the temperature of the exhaust manifold, and the maximum cylinder pressure rise rate that are obtained by inputting a second operation variable to a real engine based on the second test pattern, holding, when the second monitoring parameter exceeds a second threshold value, the second operation variable until the second monitoring parameter is less than the second threshold value, and acquiring, time series data of the second operation variable and a controlled variable.

2. 发明申请

US20230133128A1 CONTROL DEVICE, CONTROL METHOD, AND RECORDING MEDIUM 有权
公开(公告)号：US20230133128A1
公开(公告)日：2023-05-04
申请号：US17973082
申请日：2022-10-25
申请人： TRANSTRON INC. , KOGAKUIN UNIVERSITY
发明人： Masatoshi OGAWA , Takuma DEGAWA , Masakazu MUKAI , Shigeaki KURITA
IPC分类号： F02D41/00
摘要： A control device includes a controller configured to: obtain a driving condition and an actual value of a controlled amount of an engine; use a transformed engine model to calculate an estimate value of a future controlled amount, from the obtained driving condition and a candidate value of an operation amount for controlling the controlled amount, the transformed engine model in which an activation function of each neuron is transformed using a linear inequality function having a binary variable, the transformed engine model for which a weight coefficient, bias, and upper and lower limits of an input/output variable of the each neuron are set based on an engine model that has a multilayer neural structure and the activation function of a ReLU structure, receives the driving condition and operation amount as input, and predicts dynamic characteristics of the engine; determine a value of the operation amount, based on error between the calculated estimate value and a target value of the controlled amount identified from the driving condition.

3. 发明申请

US20230138137A1 CONTROL DEVICE, CONTROL METHOD, AND RECORDING MEDIUM 有权
公开(公告)号：US20230138137A1
公开(公告)日：2023-05-04
申请号：US17972873
申请日：2022-10-25
申请人： TRANSTRON INC. , KOGAKUIN UNIVERSITY
发明人： Masatoshi OGAWA , Takuma DEGAWA , Masakazu MUKAI , Shigeaki KURITA
IPC分类号： B60W30/095 , B60W50/00
摘要： A control device calculates a first estimate value of a first monitored amount of a mobile object, from sensor information of a controlled object, using a transformed first model obtained by transformation of a first model having a multi-layered neural structure and activation functions of a ReLU structure, and predicting dynamic behavior of the mobile object. The transformed first model is a model for which weight coefficients, biases, and upper and lower limit values of input/output variables of neurons are set based on the first model and in which activation functions of the neurons are transformed using a linear inequality function having a binary variable. The control device calculates a second estimate value of a second monitored amount of the controlled object from a candidate value of an operation amount for controlling the second monitored amount. The control device determines a value of the operation amount based on a target value of the second monitored amount, the second estimate value, and the first estimate value.

4. 发明申请

US20190354072A1 CONTROL PARAMETER COMPUTATION METHOD AND CONTROL PARAMETER COMPUTATION DEVICE 审中-公开
公开(公告)号：US20190354072A1
公开(公告)日：2019-11-21
申请号：US16414647
申请日：2019-05-16
申请人： TRANSTRON INC
发明人： Masatoshi OGAWA , Takuma DEGAWA
IPC分类号： G05B13/04 , G05B6/02
摘要： A control parameter computation method includes, by a processor, identifying, for each time segment, a plurality of mathematical models of different structures. The method also includes, computing an adaptiveness representing a level of adaptation between a time series of the computed control variable predicted values and time series data of the control variable in the paired data corresponding to the time segments different from the time segment employed in the identification. The method also includes, selecting, as a mathematical model for the paired data of the time segment. The method also includes, configuring a PID controller, generating a transfer function represented by a product of the PID controller and the selected mathematical model, and generating a function representing a gain margin of the transfer function and a function representing a phase margin of the transfer function. The method also includes computing a parameter Lambda.

5. 发明申请

US20230126014A1 ENGINE CONTROL DEVICE, AND ENGINE CONTROL METHOD 有权
公开(公告)号：US20230126014A1
公开(公告)日：2023-04-27
申请号：US17949531
申请日：2022-09-21
申请人： TRANSTRON INC.
发明人： Masatoshi OGAWA , Takuma DEGAWA
IPC分类号： F02D41/14 , F02D41/24
摘要： An engine control device includes a model that, based on engine operating condition and first-type operation amount, reproduces at least one index from among various indexes of combustion state of engine, and a processor that executes a process including deciding on second-type operation amount, by optimization using the model so as to treat at least one of the indexes, which are reproduced by the model, as estimated value of control amount, and ensure that the estimated value of the control amount follows control target value, associating the second-type operation amount with the control target value and the engine operating condition, rewriting a learning control table in which operation amount corresponding to the control target value and the engine operating condition is registered, and calculating operation amount according to the learning control table based on the control target value and the engine operating condition.

6. 发明申请

US20190383223A1 FUEL INJECTION CONTROL INFORMATION GENERATION DEVICE AND CONTROL DEVICE 审中-公开
公开(公告)号：US20190383223A1
公开(公告)日：2019-12-19
申请号：US16466652
申请日：2017-12-04
申请人： ISUZU MOTORS LIMITED , TRANSTRON Inc.
发明人： Satoshi HANAWA , Hidekazu FUJIE , Yoshiaki IKAI , Takuma DEGAWA
IPC分类号： F02D41/04 , F02D41/18
摘要： In order to adequately suppress both an increase in NOx emission amount and deterioration of fuel consumption rate, the present invention provides a fuel injection control information generation device equipped with: a test point information storage unit for holding test point information including a plurality of test points constituted by sets of engine speed, fuel injection amount, and oxygen concentration; and a control information generation unit for generating, for each test point included in the test point information, fuel injection control information in which the engine speed, fuel injection amount, and oxygen concentration of the test point are associated with an optimum fuel injection timing at which an index pertaining to the total of a fuel consumption rate and an NOx emission amount in the test point becomes the smallest.

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