Chuck Smith | 412-445-4237 | chuck@integratedsustainabilityinc.com
www.integratedsustainabilityinc.com
Benefits of the Hydraulic Drive System •
Shortest Financial Payback - up to 40% improvement in fuel economy from day-one gives fleets immediate operational savings and a 1 to 3 year payback on the investment (depending on drive cycle and fuel prices)
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One-day installation (new or retrofit) that does not void the OEM warranty and provides fleets with system portability
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Advanced telematics and innovative dashboard driver interface give drivers instantaneous feedback on fuel savings and system performance
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Increased low-end torque improves acceleration while advanced and innovative control system results in a smooth drive with no driver training required
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Dramatically improves braking, providing fade-free and faster stops with less pedal pressure, while simultaneously extending brake life by 8 times
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The only hydraulic hybrid system available for medium-duty vehicles
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Optimized for low noise, but sufficient to provide driver and pedestrian feedback
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Works with gasoline, natural gas and diesel engines
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No Downtime—the system runs parallel to the engine and transmission so if the system is down the vehicle drives and brakes like normal—Guaranteed
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100,000 mile maintenance routine, requiring a simple oil and bladder change
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500 ft/lbs of additional power and towing capacity—often doubling the power of the base engine
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System is optimized based on use and vehicle weight—available today for 10,000 pound GVWR to 50,000 pound GVWR – covering delivery vans, shuttle buses, utility vehicles, cutaways, box trucks, etc.
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3-year/50,000 mile warranty
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New financing options available and the system qualifies for many local and national grant opportunities
Available NOW for installation to model year 2008 or newer:
GM, Ford, Freightliner, and Isuzu medium and heavy duty fleet vehicles
Hydraulic Regenerative Braking
ACCELERATION from the hydraulic pressure driving the hydraulic motors
BRAKING Energy pumps hydraulic fluid from the low to the high pressure tank
Energy is STORED in the form of hydraulic pressure in the high pressure tank
Lightning Hybrids’ hydraulic hybrid retrofit applies a hydraulic system to the driveline of a vehicle to regenerate braking energy. Hydraulic pumps and a lightweight accumulator store braking energy, and upon acceleration, the pumps become motors that use the stored energy in the accumulator to provide torque to power the wheels. The fuel efficiency gains are achieved by regenerating the braking energy that is normally lost, and using this energy instead of (and in addition to, if needed) the internal combustion engine for acceleration. Lightning Hybrids’ patent-pending hydraulic hybrid system includes two or three hydraulic pumps, a unique power transfer module, a lightweight accumulator system, a valve block and certified hoses, and a proprietary control system.
Truck chassis without system installed
Frequently Asked Questions Regarding the LHI Hydraulic Hybrid System Ques=ons Regarding Braking 1.
How are the exis=ng vehicle brakes (founda=on brakes) coordinated with the LHI systeThe LHI system simply monitors brake pedal posi6on. The only modifica6on to the brake system is that a very short inac6ve region of pedal travel is added at the top of the stroke allowing the LHI system to do some or all of the slowing or stopping of the vehicle without using the brakes at all. Aside from the small amount of dead band at the top brakes work normally. SoAware controlling the LHI system detects wheel slippage as well as a panic stop, and in both condi6ons the brakes func6on as normal.
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What happens in case of LHI system malfunc=on?
Failure of the LHI system has no effect on the opera6on of the vehicle. There are three levels of redundancy which prevent the unintended movement (both accelera6on or decelera6on) of a vehicle because of the LHI system. 3.
How does the system handle changes to vehicle dynamic behavior during braking, such as braking while cornering or on slippery or loose surfaces (because of rear-‐only braking) and while transi=oning to service brakes?
As men6oned above, the LHI system can detect wheel slippage and will disable the system when appropriate. Also, the system can detect the poten6al for slippery condi6ons and may disable the system if appropriate. Ul6mately a driver is responsible for the safe opera6on of the vehicle by knowing how the vehicle will perform. Ques=ons Regarding the Accumulators 4. What happens when the accumulator becomes fully charged? When the accumulator is fully charged the controller uses a bypass func6on to maintain the same braking force on the vehicle without adding more fluid to the accumulator. The maximum seKng of this valve will not allow over-‐pressuriza6on of the high pressure accumulator. Further, the maximum fluid level of the system will not allow the accumulator to be overfilled as the pumps will run out of fluid prior to that event. Ques=ons Regarding Engine/Transmission control 5.
What is being changed from stock on my vehicle to integrate the LHI system?
The LHI system is a “piggy-‐back” system – meaning that it is simply added to the exis6ng drivetrain without removing or changing any major components. The system rou6nely gathers informa6on about the vehicle’s opera6on (such as speed) from the vehicle, in addi6on to input received from the driver. The LHI control system simply collects that data and modifies it for use in its own parallel opera6ng control system. 6.
Is the engine shut down while braking?
LHI does not currently employ engine shut down technology—so all auxiliary systems work as stock.
Ques=ons Regarding Driver Control & Feedback 7.
Is the system fully automa=c? If not, how does the driver control it?
The operator controls the dynamics of the vehicle as they normally would with the brake and accelerator pedals. Although the feel of the vehicle may be slightly different due to increased performance of the brakes and accelera6on, the system is designed to be completely transparent to the operator. Most drivers feel the performance changes and adapt their driving style without knowing it, much in the same way as you would drive a Porsche Cayenne differently than a Volkswagen Bug. 8.
What feedback does the driver get?
The driver gets an integrated dashboard tablet display that shows them the fuel savings they are achieving and the status and efficiency of the regenera6on system in real 6me. Ques=ons Regarding Service Life and Warranty 9.
How reliable is the system? What maintenance is required, and what is the expected life=me?
The system is based on industrial components used in standard heavy equipment like tractors and industrial machinery. It is designed to be ultra-‐low maintenance for five years, with one filter change and one bladder change. 10. Will the system void my original manufacturer’s warranty? No, the system does not nega6vely interfere with the opera6on of the vehicle, so your OEM warranty will not be voided. 11. What is Lightning Hybrids’ standard warranty for the system? Three years and 50,000 miles.
Other Ques=ons 12. How much does the LHI system weigh? The system weighs about 450 lbs. 13. Are there grant and tax incen=ves available for the LHI system? Yes. The LHI system qualifies for a variety of grants and incen6ves at the local and na6onal levels. LHI can assist you in finding and applying for funding when appropriate.
For more informa=on please contact: Chuck Smith | 412-445-4237 |chuck@integratedsustainabilityinc.com www.integratedsustainabilityinc.com
www.lightninghybrids.com