High voltage cable routing for electrified vehicle
An electrified fire fighting vehicle includes a chassis defining a longitudinal length of the electrified fire fighting vehicle, a first high voltage component positioned at a first location along the longitudinal length, a second high voltage component positioned at a second location along the longitudinal length, and a raceway assembly. The raceway assembly includes a conduit and a high voltage cable. The high voltage cable provides power between the first location and the second location. To facilitate thermally regulating the high voltage cable, at least one of (a) the conduit defines a plurality of vents, (b) the raceway assembly includes a cooling element disposed within the conduit, or (c) the conduit comprises a thermally conductive material.
1 . An electrified fire fighting vehicle comprising:
a chassis defining a longitudinal length of the electrified fire fighting vehicle, the chassis including a frame rail having an upper flange, a lower flange, and a webbing between the upper flange and the lower flange;
a first high voltage component positioned at a first location along the longitudinal length;
a second high voltage component positioned at a second location along the longitudinal length; and
a raceway assembly coupled to the webbing and extending below the lower flange;
a high voltage cable providing power between the first location and the second location, wherein at least a portion of the high voltage cable is routed through the raceway assembly; and
wherein, to facilitate thermally regulating the high voltage cable, the raceway assembly defines a plurality of vents.
2 . The electrified fire fighting vehicle of claim 1 , further comprising an energy storage system, wherein the energy storage system is the first high voltage component, the energy storage system including:
a rack coupled to the chassis;
a battery disposed within the rack; and
at least one of:
(a) an exhaust extending from the rack; or
(b) a fan disposed within the rack or the exhaust, the fan configured to drive hot air out of the rack.
3 . The electrified fire fighting vehicle of claim 2 , wherein the battery is a first battery, wherein the energy storage system includes a second battery and the fan, wherein the rack defines an interior chamber having a first portion, a second portion, and a center portion positioned between the first portion and the second portion, and wherein the first battery is disposed within the first portion and the second battery is disposed within the second portion.
4 . The electrified fire fighting vehicle of claim 3 , wherein the fan is disposed within the center portion.
5 . The electrified fire fighting vehicle of claim 3 , wherein the energy storage system includes the exhaust, wherein the exhaust is positioned above the center portion, and wherein the fan is disposed within the exhaust.
6 . The electrified fire fighting vehicle of claim 2 , wherein the energy storage system includes the exhaust and the fan, wherein the exhaust is positioned at or proximate an upper end of the rack, and wherein the fan is configured to drive the hot air in an upward direction through the exhaust.
7 . The electrified fire fighting vehicle of claim 6 , wherein the fan is configured to selectively drive the hot air in the upward direction through the exhaust or in a downward direction through a bottom portion of the rack based on an operational characteristic of the electrified fire fighting vehicle.
8 . The electrified fire fighting vehicle of claim 2 , wherein the energy storage system includes the fan, and wherein the fan is configured to drive the hot air in a downward direction through a bottom portion of the rack.
9 . An electrified vehicle comprising:
an electric motor;
a chassis; and
an energy storage system including:
a rack coupled to the chassis;
a battery disposed within the rack; and
a fan positioned to drive air out of the rack; and
a control system configured to:
selectively operate the fan to drive the air upward out of a top of the rack based on an operational characteristic of the electrified vehicle, wherein the operational characteristic includes an ambient temperature; and
selectively operate the fan to drive the air downward out of a bottom of the rack when the ambient temperature is below a temperature threshold.
10 . An electrified vehicle comprising:
an engine;
a chassis; and
an energy storage system including:
a rack coupled to the chassis;
a battery disposed within the rack; and
a fan positioned to drive air out of the rack; and
a control system configured to:
selectively operate the fan to drive the air upward out of a top of the rack based on an operational characteristic of the electrified vehicle; and
selectively operate the fan to drive the air downward out of a bottom of the rack based on the operational characteristic of the electrified vehicle;
wherein the operational characteristic includes whether the engine is on or off.
11 . An electrified vehicle comprising:
an engine;
a chassis; and
an energy storage system including:
a rack coupled to the chassis;
a battery disposed within the rack; and
a fan positioned to drive air out of the rack; and
a control system configured to:
selectively operate the fan to drive the air upward out of a top of the rack based on an operational characteristic of the electrified vehicle; and
selectively operate the fan to drive the air downward out of a bottom of the rack based on the operational characteristic of the electrified vehicle;
wherein the operational characteristic includes an operating temperature of the engine.