Case Study: a large public transportation company reduces traction drive controller costs with Promwad

a large public transportation company upgrades traction controller from two boards to one with Promwad

The large public transportation company commissioned Promwad to upgrade the hardware platform for an electric traction drive controller used in subway carriages. The outdated controller, developed over ten years ago, required a new component base and a more efficient design to facilitate modern mass production.

Promwad redesigned the hardware, consolidating two PCBs into a single board while preserving all original functionality, size, and compatibility with existing equipment. They selected modern, available electronic components and made minimal software adjustments. This solution from Promwad successfully reduced the customer's mass production costs and ensured the use of up-to-date parts.