Electric Vehicle Fluid Flow and Control Systems

Resources are Flowing into Electric Vehicle Development

EVs need new solutions for electric pumps and controls for fluid flow to multiple vehicle systems  

New systems such as rapid charging will drive more needs going forward  

EV Flow Tech provides solutions for high performance fluid flow and control

EV Flow Tech



Pump Line

E-CAN6900 is a product line of electric pumps with CAN bus control for a range of vehicle and industrial applications.

Electric water pump  -  Electric oil pump  -  CAN bus SAE J1939 Control
Class 8 Truck, Electric Drive  -  Class 8 Truck, Auxiliary Electric Cooling
Class 4-5 Truck EV cooling  -  Passenger Car EV cooling
Electric Axle cooling  -  High-torque low-speed specialty motor
Fast-charging Battery cooling  -  Nano fluids pumping development
Single controller for 12v to 48v and 200w to 600w

EV Flow Tech Solves Challenges

Remove Waste Heat from DC Fast Charge

EV Flow Tech Solution:

Replacing electrons in batteries typically is 90% efficient, with the 10% remainder resulting in waste heat. A level one home charger is less than 10kw or even less than 5kw, so slower and less heat. But fast charging creates potentially problematic high heat conditions. A 280kw fast charge energy input is equivalent to the electricity used in ~15 family homes with all circuits fully powered, and a significant amount of heat. EV Flow Tech if focused on the solutions to the waste heat so that the fastest possible charge can be promised, and delivered.

Reduce Numerous Independent Pumps

EV Flow Tech Solution:

Numerous, sometimes four or more, independent pumps and glycol loops for separate devices such as battery, charger, traction motor and controller, inverters, add mass, cost, complexity and possibly failure modes.  By collaborating with valve developers, a single EV Flow Tech pump can service multiple devices more precisely and with various loops, using its controller to command variable speed and which loops are open.

Reduce Waste From Electric Pumps That Are On 100% When Key Is "On"

EV Flow Tech Solution:

Pumps that are on 100% might have been a tolerable solution at lower charge and demand levels. But parasitic drain reduces driving distance. By designing a more precisely-run 100% variable pump and controlling it based on real system needs, more energy is conserved to make your vehicle go farther.

Fixes Cooling Pumps that Shut Down

EV Flow Tech Solution:

Pumps may run erratically or shut down under load or extended full output use, such as can be demanded during rapid charge events. These failure modes can be attributed to under-performing motor controllers. EV Flow Tech addresses and avoids these issues through high performance heat sink controller design and selection of proper components for the control board. 

Precise Communication to CAN bus Controller

EV Flow Tech Solution:

More standard electric pumps may not be capable for precise control or communication.EV Flow Tech designs to SAE J1939, ISO 20653, GMW1372, ISO16750.  Ready to run in automotive and heavy duty applications.  Customizable with customer.

We can use the CAN interface to take more precise commands and run the pump anywhere from 0 to 100%, or even as a closed loop system to process sensor inputs about various conditions and use our controller to decide the pump speed, and/or to send signals to open and close various valves and loops. 

Support Averting Thermal Runaway

EV Flow Tech Solution:

Collaborating with other partners on sensors and other technologies, EV Flow Tech can help pump maximum cooling fluid on demand and contribute to safe, rapid charging.

Provide Cooling from the Station-side Charger

EV Flow Tech Solution:

There is potential to provide higher flow and larger pumps from the charger or station-side installation itself. The CAN bus controller can be installed in the station-side charger with motor and pump that can communicate with the vehicle connected.  Quick-connect glycol cooling loop is possible to the vehicle, possibly in connection cooling of the charging cable.  Station-side cooling may eliminate heavy heat exchangers and pumps on-board the vehicle that are only needed during charging events.

New Hardware Available July 2021

Shown mounted in bench-top bracket. 3-point mounting for vehicle application support is available, no cost.

Customer Value-added Benefits

Drive Farther

Drive farther bus image 2
Use up to 40% less energy in the cooling system

Infinitely adjustable speed per system demand. Perfect matching of motor torque to required pump flow.High efficiency driver design is optimized for thermal transfer to integrated passive case heatsink; the most efficient reliable pumping solution when coupled with the intelligence in control and diagnostics.

Prevent Field Down Time

failure mode avoidance
Long life mechanical design

Diagnostic feedback before a failure can occur

12000 to 15000 hours target

Extended factory characterization across all temperature and load conditions (a patent-pending technology). Detect changed in the operation of the pumping system, and address issues in real time or report possible failure modes, such as dynamic seal and bearing early failure modes.

Charge Faster- Rapid Charging Support

EV charger
High flow output capability and controlled flow ramp-up

Intelligent drive system enables Cloud and wireless monitoring

Cloud Monitoring

Intelligent drive system enables Cloud and wireless monitoring

Profiling tools and expertise will be provided by EV Flow Tech engineers, allowing the installation and monitoring of the pumps via wireless means and accessible in the Cloud. Builds a histogram of current operation in the installation and reports "Out of Normal Use" issues. Detect real time running parameters, predict remaining life or time to PM over the CAN bus.

LIN Control

lin control image
LIN Interface Option

Programmable function and interface for wide compatibility

CAN Control

CAN bus image 2
CAN Interface Option

Enable Intelligent drive system, Rapid charging, Cloud interface, valve control, and wider systems on SAE J1939 CAN protocol

EV Flow paths 3d
Product Value

Provide off-the-shelf technology for variable speed pump and flow circuit control on CAN systems by Q4 2021.

Control flow to multiple vehicle circulation paths.

Reduce manufacturer's time to market for upfitters, small OEMs, and start-up EV.  Provide a solution they may not have.

For large OEMs, provide an outsource option to free up internal resources.

Reduce system costs.  Reduce validation time. Reduce complexity.

Class 4-6 Trucks

Class 4-6 trucks are considered by many to be the most likely heavy duty vehicles to become electric, largely because they circulate during the day and return for charging at the end of the shift.  Battery demand will be greater than EV passenger cars, and  E-CAN6900 can cool such systems that may require, for example, 100 lpm into 1.5 bar system pressure. 

Class 8 Trucks

Multiple OEM vehicle makers have announced intentions to produce Class 8 trucks.  Estimates suggest the battery systems for vehicles this size will be 11 times greater than a typical Tesla passenger car.  E-CAN6900 can cool such systems that may require 220 lpm into 1.5 bar system pressure. 

Diesel engine technology will also continue into the future for some time. To achieve higher fuel economy, current diesel truck makers are working on auto start-stop systems, similar to many passenger cars, to turn off engines during idle or even during downhill runs. After working hard to power the vehicle, shutting it down right away may prevent it from circulating necessary fluids for cooling, AC systems, or oil for piston jets.  E-CAN6900 can run electrically to continue to supply these fluids during engine shut off.

Passenger Car

Rapid charging systems will increase demands for cooling.

At the same time, vehicles are flowing coolant through batteries, controllers, traction motors, inverters, and the passenger cabin. Considerable efficiencies can be gained by managing this overall fluid routing and controlling the flow rate through the vehicle. 

E-CAN6900 systems can provide flow, control, and CAN bus interface.


A noteworthy push is being made by cities and urban areas to convert bus fleets from diesel and natural gas to electric drive.  E-CAN6900 Product line can provide coolant flow to individual systems or throughout the vehicle, and help OEMs solve their cooling needs.

Heat Exchanger Systems

Producers may precisely manage temperature of axle fluids and transmission fluids.  Rather than pump the oils directly to the vehicle radiator systems, it can be more efficiently achieved with heat exchangers near those components and instead pump glycol type coolants through them.  E-CAN6900 can provide this type of flow, such as 80lpm into 1.5 bar.


Agricultural tractors, construction, and industrial implements are making the switch to electric drive. These devices and equipment may also benefit from E-CAN6900 motors, pumps, and control systems for fluid circuits.

EV Flow Tech Pump Features

Dry Rotor

Dry rotor design produces the highest efficiency and higher performance output motor.  The bearings and dynamic shaft seals have been  selected and engineered with SKF for durability. The controller has unique programming to reduce wear on seals and to self-diagnose any wearout conditions.  These attributes mean it is more feasible to pass targets such as 15,000 hour durability for heavy duty trucks. 


The bearings and dynamic shaft seals have been  selected and engineered with SKF for durability. The controller has unique programming to reduce wear on seals and to self-diagnose any wearout conditions.  These attributes mean it is more feasible to pass targets such as 15,000 hour durability for heavy duty trucks. 

Wet Rotor Option

A wet-rotor design pump is designed to accept and flow the pumped fluid through its interior instead of sealing it out.  The wet rotor approach is available, balancing efficiency and power output depending on the size of motor required.

CAN bus Controller

Designed to SAE J1939, ISO 20653, GMW1372, ISO16750.  Ready to run in automotive and heavy duty applications.  Customizable with customer.


Single controller validated for 300-600 watt range. Scalable to smaller applications, such as 200 watt, or less.


Single controller validated for 12-48 watt systems, suited for US current systems and future, also for EU and others.


Motor, pump, controller designed for IP69 and IP67 waterproof ratings.  Mount anywhere, on chassis, engine bay.

High Torque Low Speed Option

EV axles may pump fluids for traction motors that require cold start-up, to -20C or colder. A specialty motor can produce up to 4Nm at just 800 rpm.

Production Partners

The world-class controller for E-CAN6900 is designed and built by Best Circuits in the US, the former tech lead for Google autonomous driving project. As a leader in circuit design they are developing the world-class controllers for ECAN6900 and provide expert development with OEM customers on CAN bus interface. US-based production helps manage all design, programming, and control board assembly.   Forte and its partners have extensive experiences in automotive passenger car and heavy duty product development and production.

best_circuits INC_LOGO
logo forte no projects b
vertical 3 product levels
Various Levels of Product Can Be Integrated from EV Flow Tech
Download informational PDF