# Horace William Heyman: founder, Sevcon (BorgWarner)

Canonical ID: `948a9428-cfb0-4d6d-8ae3-f669478eaebc`

American electrical engineer (1912–1998) who founded Sevcon in 1961 to develop semiconductor-controlled rectifier (SCR) motor controllers for electric vehicles. Sevcon became a leading supplier of EV traction controllers and was later acquired by BorgWarner in 2017. Heyman held the foundational patents on SCR-based speed control for battery-electric and hybrid vehicles.

- **Nationality:** American
- **Verification posture:** verified

## Current roles (1)

- [Sevcon (BorgWarner)](https://registry.deploy.report/companies/sevcon.md) Founder

## Foundings (1)

- [Sevcon (BorgWarner)](https://registry.deploy.report/companies/sevcon.md) founded 1961-01-01 (sole) _no longer at company_

See all founders: [/founders](https://registry.deploy.report/founders.md)

## Sources (2)

1. **The Times (London), Sept 9 1998 obituary** · https://archive.org/stream/NewsUK1998UKEnglish/Sep%2009%201998%2C%20The%20Times%2C%20%2366302%2C%20UK%20%28en%29_djvu.txt
2. **Sevcon company history** · https://sace.itcampeche.edu.mx/browse/6P8053/HomePages/Sevcon%20Controller%20Wiring%20Diagram.pdf


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