Segway Teardown, Inside, how it work's?
I'd like to konw more about the Segway, i have found nothing about the boards like hires pics and what mIcrocontroller
Anyone Know a Site? ore has an Segway ^^
Here is some information I could compile...
Batteries: The HT model uses two NiMH, and each is rated at 72V 350W/hr. The PT has higher density, might be LiPO I can't recall, The batteries have energy monitoring over I2C, and a secretive measuring system. The batteries are recharged partially by regenerative braking. The batteries are sealed against moisture. The batteries last 500 cycles, each cycle gives ten miles range, and cost $600 a set.
Motors: The traction motors drive each wheel through approx 100:1 gear reduction and are rated at one horse power each. The motors have two identical but isolated sets of windings and are linked to two identical controllers.
Controllers: Two identical three-phase controllers. Fully redundant. Can operate together (for 2hp peak per wheel) or operate on one controller (failure protection). Based on a TI 32bit DSP, 30+ megaflops/sec.
User interface: Original model has a twist grip with hall-effect sensors (two sets) for steering and a dual port LCD. Later model has a pivoted steering column for steering. The LCD and steering talk over dual redundant CAN buses.
Gyros: There are five, with dual redundant cross-linked pairs driving separate DSP controllers. There must be software parity on gyro data to process a motor engagement.
Overall there are eight or ten Microchip microcontroller