Throttle predictive controller in automatic engine tester

Claim 2

A throttle predictive controller in an engine tester, comprising: an operation pattern generator; an operational processing unit equipped with a throttle predictive angle calculation part; a dynamometer controller; a throttle amplifier; a throttle actuator; a dynamometer; and a revolution pickup for detecting the speed of revolution of an output shaft on an engine being tested and emitting a signal in response to said speed; said operation pattern generator being connected to input a set revolution speed signal to said throttle predictive angle calculation part and to said throttle amplifier, and to input a set torque signal to said throttle predictive angle calculation part and to said dynamometer controller; said dynamometer controller being connected to said dynamometer for controlling a dynamometer torque for said dynamometer coupled to said output shaft of said engine, and said dynamometer controller being connected to said revolution pickup to receive a dynamometer actual revolution speed signal from said pickup at the time of operation of said engine; said dynamometer controller being further connected to input an actual dynamometer torque signal and a dynamometer actual revolution speed signal at the time of operation of said engine to said throttle predictive angle calculation part; said throttle amplifier being connected to input an actual throttle angle signal to said throttle predictive angle calculation part; said throttle predictive angle calculation part preparing and storing a map based on said actual revolution speed, said actual torque and said actual throttle angle, and being further connected to input a throttle angle signal calculated from said map to said throttle amplifier; said throttle amplifier being connected to input an amplification signal to said throttle actuator for actuating a throttle of said engine to an angle based on said inputted throttle angle signal from said throttle predictive angle calculation part; and said throttle actuator being connected to said throttle of said engine.

Claim 3

A throttle predictive controller in an engine tester as claimed in claim 1, wherein said throttle amplifier further comprises: an error correction controller for making error correction control for the difference between a set revolution speed and dynamometer actual revolution speed; and an adder to which is inputted said dynamometer actual revolution speed signal and the correction throttle angle from said error correction controller for adding to said throttle angle.

Claim 4

A throttle predictive controller in an engine tester, comprising: an operation pattern generator; an operational processing unit comprising a throttle predictive angle calculation part, a throttle angle-corresponding to acceleration calculation part and an adder; a dynamometer controller; a throttle amplifier; a throttle actuator; a dynamometer; and a revolution pickup for detecting the speed of revolution of an output shaft on an engine being tested and emitting a signal in response to said speed; said operation pattern generator being connected to input a set revolution speed signal to said throttle predictive angle calculation part, to said throttle angle-corresponding to acceleration calculation part and to said throttle amplifier, and to input a set torque signal to said throttle predictive angle calculation part and to said dynamometer controller; said dynamometer controller being connected to said dynamometer for controlling a dynamometer torque for said dynamometer coupled to said output shaft of said engine, and said dynamometer controller being connected to said revolution pickup for inputting an actual dynamometer signal and a dynamometer actual revolution speed signal at the time of operation of said engine to said throttle predictive angle calculation part; said throttle amplifier being connected to input an actual throttle angle signal to said throttle predictive angle calculation part; said throttle predictive angle calculation part preparing and storing a map on the basis of an actual revolution speed, an actual torque and an actual throttle angle; said adder of said operational processing unit adding the throttle angle calculated from said map to the throttle angle calculated from a set revolution speed change component by said throttle angle-corresponding to acceleration calculation part to produce an added throttle angle signal, and being connected to input said added throttle angle signal to said throttle amplifier; said throttle amplifier being connected to input an amplification signal to said throttle actuator for actuating a throttle of said engine to an angle based on said inputted added throttle angle signal; and said throttle actuator being connected to said throttle of said engine.

Claim 5

A throttle predictive controller in an engine tester, comprising: an operation pattern generator; an operational processing unit comprising a throttle predictive angle calculation part, a throttle angle-corresponding to acceleration calculation part and an adder; a dynamometer controller; a throttle amplifier; a throttle actuator; a dynamometer; and a revolution pickup for detecting the speed of revolution of an output shaft on an engine being tested and emitting a signal in response to said speed; said operation pattern generator being connected to input a set revolution speed signal to said throttle predictive angle calculation part, to said throttle angle-corresponding to acceleration calculation part and to said throttle amplifier, and to input a set torque signal to said throttle predictive angle calculation part and to said dynamometer controller; said dynamometer controller being connected to said dynamometer for controlling a dynamometer torque for said dynamometer coupled to said output shaft of said engine, and said dynamometer controller being connected to said revolution pickup for inputting an actual dynamometer signal and a dynamometer actual revolution speed signal at the time of operation of said engine to said throttle predictive angle calculation part; said throttle amplifier being connected to input an actual throttle angle signal to said throttle predictive angle calculation part; said throttle predictive angle calculation part preparing and storing a map on the basis of an actual revolution speed, an actual torque and an actual throttle angle; said adder of said operational processing unit adding the throttle angle calculated from said map to the throttle angle calculated from a set revolution speed change component by said throttle angle-corresponding to acceleration calculation part to produce an added throttle angle signal, and being connected to input said added throttle angle signal to said throttle amplifier; said throttle amplifier being connected to input an amplification signal to said throttle actuator for actuating a throttle of said engine to an angle based on said inputted added throttle angle signal; and said throttle actuator being connected to said throttle of said engine.

Claim 6

A throttle predictive controller in an engine tester as claimed in claim 3, wherein said throttle amplifier further comprises: an error correction controller for making error correction control for the difference between a set revolution speed and dynamometer actual revolution speed; and an adder to which is inputted said dynamometer actual revolution speed signal and the correction throttle angle from said error correction controller for adding to said throttle angle.

Claim 7

A throttle predictive controller in a tester for a car having an engine, comprising: an operation pattern generator; an operational processing unit equipped with a throttle predictive angle calculation part; a car speed converter unit; a throttle amplifier; a change controller; a change actuator; a chassis dynamometer; a throttle actuator; and a revolution pickup for detecting car speed from the speed of revolution of a driving wheel of the car being tested on said chassis dynamometer and emitting a pulse signal in response to said speed; said operation pattern generator being connected to input a set car speed signal to said throttle predictive angle calculation part and to said throttle amplifier, and to input a set change position signal to said throttle predictive angle calculation part and to said change controller; said change controller being connected to said change actuator to control said change actuator on the basis of said set change position signal from said operation pattern generator; said change actuator being connected to a transmission of a car being tested for actuating said transmission; said revolution pickup detecting the car speed being connected to input said car speed pulse signal to said car speed converter unit; said car speed converter unit being connected to input a car speed signal based on said car speed pulse signal to said throttle predictive angle calculation part; said throttle amplifier being connected to input an actual throttle angle signal to said throttle predictive angle calculation part; said throttle predictive angle calculation part calculating a throttle angle from an actual car speed, and actual throttle angle and said set change position signal, and preparing and storing a map on the basis of said calculation and being connected to input a throttle angle signal calculated from said map to said throttle amplifier; said throttle amplifier being connected to input an amplification signal to said throttle actuator for actuating a throttle of an engine of said car being tested to an angle based on said inputted throttle angle signal; and said throttle actuator being connected to said throttle of said engine.

Claim 8

A throttle predictive controller in a tester for a car having an engine, comprising: an operation pattern generator; an operational processing unit equipped with a throttle predictive angle calculation part; a car speed converter unit; a throttle amplifier; a change controller; a change actuator; a chassis dynamometer; a throttle actuator; and a revolution pickup for detecting car speed from the speed of revolution of a driving wheel of the car being tested on said chassis dynamometer and emitting a pulse signal in response to said speed; said operation pattern generator being connected to input a set car speed signal to said throttle predictive angle calculation part and to said throttle amplifier, and to input a set change position signal to said throttle predictive angle calculation part and to said change controller; said change controller being connected to said change actuator to control said change actuator on the basis of said set change position signal from said operation pattern generator; said change actuator being connected to a transmission of a car being tested for actuating said transmission; said revolution pickup detecting the car speed being connected to input said car speed pulse signal to said car speed converter unit; said car speed converter unit being connected to input a car speed signal based on said car speed pulse signal to said throttle predictive angle calculation part; said throttle amplifier being connected to input an actual throttle angle signal to said throttle predictive angle calculation part; said throttle predictive angle calculation part calculating a throttle angle from an actual car speed, and actual throttle angle and said set change position signal, and preparing and storing a map on the basis of said calculation and being connected to input a throttle angle signal calculated from said map to said throttle amplifier; said throttle amplifier being connected to input an amplification signal to said throttle actuator for actuating a throttle of an engine of said car being tested to an angle based on said inputted throttle angle signal; and said throttle actuator being connected to said throttle of said engine.

Claim 9

A throttle predictive controller as claimed in claim 4, wherein said throttle amplifier further comprises: an error correction controller for making error correction control for the difference between the set car speed and the actual car speed; and an adder to which is inputted said actual car speed and the correction throttle angle from said error correction controller for adding to said throttle angle.

Claim 10

A throttle predictive controller in a tester for a car having an engine, comprising: an operation pattern generator; an operational processing unit comprised of a throttle predictive angle calculation part, a throttle angle-corresponding to acceleration calculation part and an adder; a car speed converter unit; a throttle amplifier; a change controller; a chassis dynamometer; a throttle actuator; a change actuator; and a revolution pickup for detecting car speed from the speed of revolution of a driving wheel of the car being tested on said chassis dynamometer and emitting a pulse signal in response to said speed; said operation pattern generator being connected to input a set car speed signal to said throttle predictive angle calculation part, to said throttle angle-corresponding to acceleration calculation part and to said throttle amplifier and to input a set change position signal to said throttle predictive angle calculation part and to said change controller; said change controller being connected to said change actuator to control said change actuator on the basis of said set change position signal from said operation pattern generator; said change actuator being connected to a transmission of a car being tested for actuating said transmission; said revolution pickup detecting the car speed being conencted to input said car speed pulse signal to said car speed converter unit; said car speed converter unit being connected to input a car speed signal based on said car speed pulse signal to said throttle predictive angle calculation part; said throttle amplifier being connected to input an actual throttle angle signal to said throttle predictive angle calculation part; said throttle predictive angle calculation part calculating a throttle angle from an actual car speed, an actual throttle angle and said set change position signal and preparing and storing a map on the basis of said calculation; said adder of said operational processing unit adding the throttle angle calculated from said map and the throttle angle calculated from a set car speed change component by said throttle angle-corresponding to acceleration calculation part to produce an added throttle angle signal, and being connected to input said added throttle angle signal to said throttle amplifier; said throttle amplifier being connected to input an amplification signal to said throttle actuator for actuating a throttle of an engine of said car being tested to an angle based on said inputted added throttle angle signal; and said throttle actuator being connected to said throttle of said engine of said car being tested.

Claim 11

A throttle predictive controller in a tester for a car having an engine, comprising: an operation pattern generator; an operational processing unit comprised of a throttle predictive angle calculation part, a throttle angle-corresponding to acceleration calculation part and an adder; a car speed converter unit; a throttle amplifier; a change controller; a chassis dynamometer; a throttle actuator; a change actuator; and a revolution pickup for detecting car speed from the speed of revolution of a driving wheel of the car being tested on said chassis dynamometer and emitting a pulse signal in response to said speed; said operation pattern generator being connected to input a set car speed signal to said throttle predictive angle calculation part, to said throttle angle-corresponding to acceleration calculation part and to said throttle amplifier and to input a set change position signal to said throttle predictive angle calculation part and to said change controller; said change controller being connected to said change actuator to control said change actuator on the basis of said set change position signal from said operation pattern generator; said change actuator being connected to a transmission of a car being tested for actuating said transmission; said revolution pickup detecting the car speed being conencted to input said car speed pulse signal to said car speed converter unit; said car speed converter unit being connected to input a car speed signal based on said car speed pulse signal to said throttle predictive angle calculation part; said throttle amplifier being connected to input an actual throttle angle signal to said throttle predictive angle calculation part; said throttle predictive angle calculation part calculating a throttle angle from an actual car speed, an actual throttle angle and said set change position signal and preparing and storing a map on the basis of said calculation; said adder of said operational processing unit adding the throttle angle calculated from said map and the throttle angle calculated from a set car speed change component by said throttle angle-corresponding to acceleration calculation part to produce an added throttle angle signal, and being connected to input said added throttle angle signal to said throttle amplifier; said throttle amplifier being connected to input an amplification signal to said throttle actuator for actuating a throttle of an engine of said car being tested to an angle based on said inputted added throttle angle signal; and said throttle actuator being connected to said throttle of said engine of said car being tested.

Claim 12

A throttle predictive controller as claimed in claim 7, wherein said throttle amplifier further comprises: an error correction controller for making error correction control for the difference between the set car speed and the actual car speed; and an adder to which is inputted said actual car speed and the correction throttle angle from said error correction controller for adding to said throttle angle.