EV.1.2 Grounded Low Voltage - GLV

Every electrical part that is not part of the Tractive System

Firstly, what is a low voltage system?

For our purposes, this system describes the components and connections which are responsible for power management, user interface (UI), control, and critical safety equipment. In practice, this overarching definition extends to a variety of different circuits around the vehicle which run at relatively low voltage (12V - 24V).

You may notice that the user interface (UI) system is included, but operates within the scope of 5V. This may be an inconsistency in our documentation, but my current understanding is that the voltage ranges associated with each system are intended to give a general idea, and are not necessarily exclusive (within reason- you can justify a negative difference of seven volts, but probably not a positive difference of a hundred).

In any case, some examples of circuits which fall within the low voltage category are the shutdown circuit and brake system plausibility device (BSPD).

Schematic - Shutdown Circuit

Here is our schematic for the shutdown circuit as pictured in the Electrical Systems form (ESF). You'll notice that in the master schematic depicts the connections significantly differently than the dedicated circuit model. As with most cases, the circuit was simplified in the master schematic for ease of understanding.

Schematic - Brake System Plausibility Device (BSPD)

Here is our schematic for the Brake System Plausibility Device (BSPD) as pictured in the Electrical Systems form (ESF). Again, You'll notice that in the master schematic oversimplifies this design and considers only its inputs and outputs. This is something to be aware of as you are conducting circuit analysis and making revisions.

Shown below are a few of the major components depicted in the Grounded Low Voltage System (GLVS).

Graphic - APPS Logic

Graphic - E-Stop

Graphic - BOTS

Last Rule in this Section

Next Rule in this Section

Page updated

Report abuse