WindRunner™ self-balancing electric vehicle user’s manual
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B.4 Hot back-up safety mechanism
Several key components of the WindRunner have the hot back-up safety mechanism to maximize the
guarantee of the driver’s safety.
Hot back-up battery pack: both battery packs are used together, one for operating, and one for standby. If
one battery pack fails, powers off, or disengaged, it may not cause accidents. Reason being, the WindRunner may
immediately detect the exceptions of the battery pack, and decelerate immediately. The shaking mainframe will
give the alarm buzz and warn the driver to get off.
Hot back-up posture sensor unit: the posture sensor unit is the core of the WindRunner. If the posture sensor
unit fails and does not work while riding, a serious accident may be possibly happen. To ensure safety, two sets
of individual posture sensor units are provided. Through a unique control algorithm, if any one sets out of function,
the system may avoid serious accidents such as over turn, etc. The WindRunner will immediately decelerate. The
mainframe will shake give an alarm buzz, and warn the driver to get off.
Hot back-up power subsystem: the WindRunner has a great amount of built-in micro-electronic devices,
which require the converter for power supply. The micro-electronic chip (IC) has very low failure rate. However,
if partial power fails, the system will power off. Then all the hot back-up design shall lose its significance. So two
sets of power supplies were provided. Any one set may be sufficient for support of the whole system individually.
If one set of the power supply system fails, the system may immediately detect trouble, and immediately
decelerate. The mainframe will shake, give an alarm buzz, and warn the driver to get off.
