Publication result detail

Battery Powered Lawn Mower

VOREL, P.; MARTIŠ, J.

Original Title

Battery Powered Lawn Mower

English Title

Battery Powered Lawn Mower

Type

Paper in proceedings outside WoS and Scopus

Original Abstract

An electric lawn mower supplied from batteries was designed and constructed. Li-ion cells are used because of their high volumetric and weight energy density. Falling prices of these batteries allow such a conception to be practical. Two separate motors are used – one for the traction and the other for the main blade drive. Both motors are brushless DC motors (three-phase synchronous motors with permanent magnets with a specific waveform of the induced voltage). Hall sensors are used to sense the rotor position which is necessary for the control of converters. A high torque outrunner construction of the blade motor was selected to eliminate the need of a gearbox. The used battery capacity of 1.6 kWh was shown to be unnecessarily high for a practical operation – a long operation time (more than 3 hours for one charge), high weight.

English abstract

An electric lawn mower supplied from batteries was designed and constructed. Li-ion cells are used because of their high volumetric and weight energy density. Falling prices of these batteries allow such a conception to be practical. Two separate motors are used – one for the traction and the other for the main blade drive. Both motors are brushless DC motors (three-phase synchronous motors with permanent magnets with a specific waveform of the induced voltage). Hall sensors are used to sense the rotor position which is necessary for the control of converters. A high torque outrunner construction of the blade motor was selected to eliminate the need of a gearbox. The used battery capacity of 1.6 kWh was shown to be unnecessarily high for a practical operation – a long operation time (more than 3 hours for one charge), high weight.

Keywords

BLDC motor, electric lawn mower, Li-ion battery, BMS, inverter

Key words in English

BLDC motor, electric lawn mower, Li-ion battery, BMS, inverter

Authors

VOREL, P.; MARTIŠ, J.

RIV year

2022

Released

22.08.2021

Publisher

Brno University of Technology

Location

Brno

ISBN

978-80-214-5975-5

Book

Advanced Batteries, Accumulators and Fuel Cells - 22nd ABAF

Edition

1.

Pages from

268

Pages to

270

Pages count

3

URL

https://www.aba-brno.cz/download/2021-ABAF-Proceeding.pdf

BibTex

@inproceedings{BUT173203,
  author="Pavel {Vorel} and Jan {Martiš}",
  title="Battery Powered Lawn Mower",
  booktitle="Advanced Batteries, Accumulators and Fuel Cells - 22nd ABAF",
  year="2021",
  series="1.",
  pages="268--270",
  publisher="Brno University of Technology",
  address="Brno",
  isbn="978-80-214-5975-5",
  url="https://www.aba-brno.cz/download/2021-ABAF-Proceeding.pdf"
}