Robust solenoid current control for EHB

Ho Gi Jung, Jea Young Hwang, Pal Joo Yoon, Jaihie Kim

Research output: Contribution to conferencePaper

4 Citations (Scopus)

Abstract

This paper describes a method for the estimation of solenoid resistance. With the estimated solenoid resistance, PWM duty ratio can be compensated to achieve a robust solenoid current control. Because EHB is a wet type BBW(Brake By Wire), HU(Hydraulic Unit) performs not only ABS/TCS/ESP functions but also CBS(Conventional Brake System) function. To implement the CBS function, HU must be able to control the wheel pressure in a wide temperature range and for a long duration. During the development of EHB, it is found that a change in solenoid resistance is a major disturbance to both current control and pressure control. Developed method uses a model for solenoid current and an iterative method for calculating the solenoid resistance. Furthermore, the effect of measurement noise can be eliminated by averaging. The proposed method can economically estimate the solenoid resistance and make current control and pressure control very robust with respect to temperature change and noise.

Original languageEnglish
DOIs
Publication statusPublished - 2005 Dec 1
Event2005 SAE World Congress - Detroit, MI, United States
Duration: 2005 Apr 112005 Apr 14

Other

Other2005 SAE World Congress
CountryUnited States
CityDetroit, MI
Period05/4/1105/4/14

Fingerprint

Solenoids
Electric current control
Brakes
Pressure control
Hydraulics
Iterative methods
Pulse width modulation
Wheels
Wire
Temperature

All Science Journal Classification (ASJC) codes

  • Automotive Engineering
  • Safety, Risk, Reliability and Quality
  • Pollution
  • Industrial and Manufacturing Engineering

Cite this

Jung, H. G., Hwang, J. Y., Yoon, P. J., & Kim, J. (2005). Robust solenoid current control for EHB. Paper presented at 2005 SAE World Congress, Detroit, MI, United States. https://doi.org/10.4271/2005-01-1583
Jung, Ho Gi ; Hwang, Jea Young ; Yoon, Pal Joo ; Kim, Jaihie. / Robust solenoid current control for EHB. Paper presented at 2005 SAE World Congress, Detroit, MI, United States.
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Jung, HG, Hwang, JY, Yoon, PJ & Kim, J 2005, 'Robust solenoid current control for EHB', Paper presented at 2005 SAE World Congress, Detroit, MI, United States, 05/4/11 - 05/4/14. https://doi.org/10.4271/2005-01-1583

Robust solenoid current control for EHB. / Jung, Ho Gi; Hwang, Jea Young; Yoon, Pal Joo; Kim, Jaihie.

2005. Paper presented at 2005 SAE World Congress, Detroit, MI, United States.

Research output: Contribution to conferencePaper

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AU - Jung, Ho Gi

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AU - Kim, Jaihie

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N2 - This paper describes a method for the estimation of solenoid resistance. With the estimated solenoid resistance, PWM duty ratio can be compensated to achieve a robust solenoid current control. Because EHB is a wet type BBW(Brake By Wire), HU(Hydraulic Unit) performs not only ABS/TCS/ESP functions but also CBS(Conventional Brake System) function. To implement the CBS function, HU must be able to control the wheel pressure in a wide temperature range and for a long duration. During the development of EHB, it is found that a change in solenoid resistance is a major disturbance to both current control and pressure control. Developed method uses a model for solenoid current and an iterative method for calculating the solenoid resistance. Furthermore, the effect of measurement noise can be eliminated by averaging. The proposed method can economically estimate the solenoid resistance and make current control and pressure control very robust with respect to temperature change and noise.

AB - This paper describes a method for the estimation of solenoid resistance. With the estimated solenoid resistance, PWM duty ratio can be compensated to achieve a robust solenoid current control. Because EHB is a wet type BBW(Brake By Wire), HU(Hydraulic Unit) performs not only ABS/TCS/ESP functions but also CBS(Conventional Brake System) function. To implement the CBS function, HU must be able to control the wheel pressure in a wide temperature range and for a long duration. During the development of EHB, it is found that a change in solenoid resistance is a major disturbance to both current control and pressure control. Developed method uses a model for solenoid current and an iterative method for calculating the solenoid resistance. Furthermore, the effect of measurement noise can be eliminated by averaging. The proposed method can economically estimate the solenoid resistance and make current control and pressure control very robust with respect to temperature change and noise.

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Jung HG, Hwang JY, Yoon PJ, Kim J. Robust solenoid current control for EHB. 2005. Paper presented at 2005 SAE World Congress, Detroit, MI, United States. https://doi.org/10.4271/2005-01-1583