US 9,809,127 B2 · Compact integrated battery packs for hybrid vehicles

Abstract

Compact integrated battery packs for hybrid vehicles are fully integrated with an on-board cooling system and include both the battery cells for supplying a primary voltage, such as powering a belt-driven starter generator (BSG) unit for engine start/stop, as well as a direct current (DC) to DC converter for stepping down the primary voltage to a secondary voltage for powering low voltage components and/or recharging a lead-acid battery. The on-board DC to DC converter decreases packaging size and eliminates the need for an alternator, which further decreases packaging size. Primary and secondary voltage output ports can also be implemented for quick and easy connection to other components. Configurations include single-layer and dual-layer arrangements with integrated air or liquid cooling for placement in or beneath a trunk of a vehicle, behind or beneath seats in a cab of a pickup truck, and/or beneath a vehicle.

Claims15

Dependent claims

A compact integrated battery pack for a hybrid vehicle, the battery pack comprising:

a housing;
a plurality of battery cells disposed within the housing and configured to collectively output a primary voltage for powering an electric motor of the hybrid vehicle;
a direct current (DC) to DC converter circuit disposed within the housing and configured to step-down the primary voltage to a secondary voltage for powering low voltage components of the hybrid vehicle;
a control circuit disposed within the housing and configured to control (i) recharging of the plurality of battery cells, (ii) output of the primary voltage, and (iii) output of the secondary voltage;
and
an integrated cooling system disposed within the housing and configured to cool the battery pack.

3 more elements

Dependencies are inferred from the claim text.

Compact integrated battery packs for hybrid vehicles

Life of this patent

Compact integrated battery packs for hybrid vehicles

Life of this patent

Abstract

Claims15