Rapid Revolution Speed Control of the Brushless DC Motor for Automotive LIDAR Applications

Hironobu AKITA; Tsunenobu KIMOTO

doi:10.1587/transele.2019ECP5030

Rapid Revolution Speed Control of the Brushless DC Motor for Automotive LIDAR Applications

Hironobu AKITA, Tsunenobu KIMOTO

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A laser imaging detection and ranging (LIDAR) is one of the key sensors for autonomous driving. In order to improve its performance of the measurable distance, especially toward the front-side direction of the vehicle, this paper presents rapid revolution speed control of a brushless DC (BLDC) motor with a cyclostationary command signal. This enables the increase of the signal integration time for the designated direction, and thus improves the signal-to-noise ratio (SNR), while maintaining the averaged revolution speed. We propose the use of pre-emphasis circuits to accelerate and decelerate the revolution speed of the motor rapidly, by modifying the command signal so as to enhance the transition of the speed. The adaptive signal processing can adjust coefficients of the pre-emphasis filter automatically, so that it can compensate for the decayed response of the motor and its controller. Experiments with a 20-W BLDC motor prove that the proposed technique can achieve the actual revolution speed output to track the designated speed profile ranging from 600 to 1400 revolutions per minute (rpm) during one turn.

Publication: IEICE TRANSACTIONS on Electronics Vol.E103-C No.6 pp.324-331

Publication Date: 2020/06/01

Publicized: 2020/01/10

Online ISSN: 1745-1353

DOI: 10.1587/transele.2019ECP5030

Type of Manuscript: PAPER

Category: Storage Technology

Authors

Hironobu AKITA
DENSO CORPORATION
Tsunenobu KIMOTO
Kyoto University

Keyword

pre-emphasis, digital signal processing, brushless DC motor, vector control, LIDAR

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Hironobu AKITA, Tsunenobu KIMOTO, "Rapid Revolution Speed Control of the Brushless DC Motor for Automotive LIDAR Applications" in IEICE TRANSACTIONS on Electronics, vol. E103-C, no. 6, pp. 324-331, June 2020, doi: 10.1587/transele.2019ECP5030.
Abstract: A laser imaging detection and ranging (LIDAR) is one of the key sensors for autonomous driving. In order to improve its performance of the measurable distance, especially toward the front-side direction of the vehicle, this paper presents rapid revolution speed control of a brushless DC (BLDC) motor with a cyclostationary command signal. This enables the increase of the signal integration time for the designated direction, and thus improves the signal-to-noise ratio (SNR), while maintaining the averaged revolution speed. We propose the use of pre-emphasis circuits to accelerate and decelerate the revolution speed of the motor rapidly, by modifying the command signal so as to enhance the transition of the speed. The adaptive signal processing can adjust coefficients of the pre-emphasis filter automatically, so that it can compensate for the decayed response of the motor and its controller. Experiments with a 20-W BLDC motor prove that the proposed technique can achieve the actual revolution speed output to track the designated speed profile ranging from 600 to 1400 revolutions per minute (rpm) during one turn.
URL: https://global.ieice.org/en_transactions/electronics/10.1587/transele.2019ECP5030/_p

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@ARTICLE{e103-c_6_324,
author={Hironobu AKITA, Tsunenobu KIMOTO, },
journal={IEICE TRANSACTIONS on Electronics},
title={Rapid Revolution Speed Control of the Brushless DC Motor for Automotive LIDAR Applications},
year={2020},
volume={E103-C},
number={6},
pages={324-331},
abstract={A laser imaging detection and ranging (LIDAR) is one of the key sensors for autonomous driving. In order to improve its performance of the measurable distance, especially toward the front-side direction of the vehicle, this paper presents rapid revolution speed control of a brushless DC (BLDC) motor with a cyclostationary command signal. This enables the increase of the signal integration time for the designated direction, and thus improves the signal-to-noise ratio (SNR), while maintaining the averaged revolution speed. We propose the use of pre-emphasis circuits to accelerate and decelerate the revolution speed of the motor rapidly, by modifying the command signal so as to enhance the transition of the speed. The adaptive signal processing can adjust coefficients of the pre-emphasis filter automatically, so that it can compensate for the decayed response of the motor and its controller. Experiments with a 20-W BLDC motor prove that the proposed technique can achieve the actual revolution speed output to track the designated speed profile ranging from 600 to 1400 revolutions per minute (rpm) during one turn.},
keywords={},
doi={10.1587/transele.2019ECP5030},
ISSN={1745-1353},
month={June},}

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TY - JOUR
TI - Rapid Revolution Speed Control of the Brushless DC Motor for Automotive LIDAR Applications
T2 - IEICE TRANSACTIONS on Electronics
SP - 324
EP - 331
AU - Hironobu AKITA
AU - Tsunenobu KIMOTO
PY - 2020
DO - 10.1587/transele.2019ECP5030
JO - IEICE TRANSACTIONS on Electronics
SN - 1745-1353
VL - E103-C
IS - 6
JA - IEICE TRANSACTIONS on Electronics
Y1 - June 2020
AB - A laser imaging detection and ranging (LIDAR) is one of the key sensors for autonomous driving. In order to improve its performance of the measurable distance, especially toward the front-side direction of the vehicle, this paper presents rapid revolution speed control of a brushless DC (BLDC) motor with a cyclostationary command signal. This enables the increase of the signal integration time for the designated direction, and thus improves the signal-to-noise ratio (SNR), while maintaining the averaged revolution speed. We propose the use of pre-emphasis circuits to accelerate and decelerate the revolution speed of the motor rapidly, by modifying the command signal so as to enhance the transition of the speed. The adaptive signal processing can adjust coefficients of the pre-emphasis filter automatically, so that it can compensate for the decayed response of the motor and its controller. Experiments with a 20-W BLDC motor prove that the proposed technique can achieve the actual revolution speed output to track the designated speed profile ranging from 600 to 1400 revolutions per minute (rpm) during one turn.
ER -