NEMB Brake Calipers
Significant improvements in material technology and systems controls over the last decade has allowed for the invention of a new and improved brake system.
The Non-Linear Electro-Mechanical Brake (NEMB).
The NEMB is a patent-pending brake system that uses an electric motor and a nonlinear mechanical transmission to apply a force to the brake pads. The system of two or more calipers are interconnected and controlled through our Intelligent Brake Control Software, Irene, to ensure safe, precise, and ASIL compliant brake delivery.
HIGH QUALITY BRAKING SOLUTIONS
How it Works
- The NEMB is a friction-based Disc Brake System using off-the-shelf brake pads and brake rotors
- A Smart Actuator using a Brushless DC motor is installed in each caliper
- A proprietary transmission converts the motor torque to a clamping force upon commands from the driver or a Vehicle Controls Module
- The Remmen Zero-Drag© mechanism keeps the pads off the rotor for enhanced mileage and efficiency
Conventional Pads and Rotors
The NEMB uses a sliding caliper design coupled with off-the-shelf pads and rotors. The system can use one-piece, two-piece, and carbon-ceramic brake rotors.
1 of 4NEMB Caliper
A proprietary transmission within the NEMB caliper converts motor torque to a clamping force using 55% less energy than competing systems.
2 of 4Smart Actuator + Irene
Each caliper uses a BLDC motor in a Smart Actuator configuration controlled by Irene. This ensures precise and efficient brake torque generation under all driving conditions.
3 of 4Remmen Zero-Drag©
Each NEMB caliper uses the Remmen Zero-Drag mechanism to actively life the pads from the rotors. This mechanism can help reduce energy use (and fuel consumption) by up to 10%.
4 of 4
Flexible Architecture
The NEMB caliper is extremely flexible in its architecture and can be molded to a customer’s vehicle. Use it in a smart actuator configuration or a non-smart configuration with remote controllers. Whatever the need and safety goals of a vehicle is, the NEMB will be sure to meet it.
Scalable
NEMB Calipers are scalable from 15kN to over 90kN so that virtually all passenger vehicles (EV or ICE) under a Gross Vehicle Weight Rating of 4,500-kilograms (10,000-pounds) can be serviced by the NEMB system. Current available caliper designs include 40, 50, 65, and 75 kilo-Newton caliper designs.
| NEMB Caliper Designation | Max. Rated Clamp Force | TTL | Min. Rotor Dia. | Min. Rim Dia. | Applications | E040S01 | 40kN | 400+ms | 13" | 16.5" | Utility Trailers |
|---|---|---|---|---|---|
| E040F01 | 40kN | 150ms | 12.6" | 16" | Passenger Vehicles |
| E050F01 | 50kN | 150ms | 12.6" | 17" | Passenger Vehicle |
| E065F01 | 65kN | 150ms | 13" | 17" | Passenger Vehicle |
| E075F01 | 75kN | 150ms | 13" | 17" | Passenger Vehicle |
Mechanical Specifications
| Description | Spec. |
|---|---|
| Brake Design | Mono-block, Sliding Caliper |
| Brake Drag Compensation | Remmen Zero-Drag |
| External Dimensions | 265 x 145 x 195 mm (50 kN) 265 x 145 x 205 mm (75 kN) |
| Time to Wheel-Lock (TTL) | 150 ms to 170 ms |
| Ingress Protection | IP6K9K |
| Mechanical Backup | Available and Optional |
| Integrated Parking Brake | Yes |
Electrical Specifications
| Description | Spec. |
|---|---|
| Electrical Control Unit | Integrated (Smart Actuator) or Remote Control Unit |
| Rated Voltage | 12V to 48V |
| Communication | CAN or Ethernet |
| Redundancy | Auxiliary power & two Communication line inputs per caliper |
| Safety Classification | ASIL-D |
| Actuator Size | 100W/230W Peak (50 kN) |
Frequently Asked Questions
How safe is the system?
The calipers of the NEMB system can be operated independently. Because of this, the system is inherently redundant. Should one caliper fail, be it mechanically or electronically, the other three calipers will remain operational. Even in the event of two calipers failing, the system will still have enough power to bring the vehicle to a stop within FMVSS required stopping distances. Should this still not be enough to satisfy safety concerns, the NEMB system can be manually actuated in the case of a full power-loss scenario.
How sustainable is the system?
The NEMB is a fully dry system which means it does not need any toxic hydraulic fluids to operate. In addition, the Remmen Zero-Drag© mechanism offers true zero-drag capabilities. This means that the brake pads will be fully disengaged from the rotor if no brake is required. The benefits of this are better mileage in EVs, better fuel efficiency in ICE, and lower brake particulate emissions; all of which lead to direct reduction in a vehicle’s lifetime carbon footprint.
How does the system actuate?
The NEMB uses an electric brushless direct current motor and a patent-pending nonlinear transmission design to amplify the torque of the motor and convert that torque to a linear force in a fully back-driveable system. In doing so, the NEMB is able to use up to 55% less energy during actuation and is also able to regenerate some of that energy during brake release, feeding it back to the vehicle’s battery.
How much space will the system use?
The NEMB system is flexible in it’s architecture and in a smart-actuator configuration, it takes up virtually no on-vehicle space. The system is comprised of one NEMB smart actuator assembly at each wheel receiving power input from the vehicle and command inputs through either CAN or Ethernet connections.
Can the NEMB be used with hydraulic brakes?
Yes. Although the full benefits of the system are seen in a fully-electric architecture, the NEMB system can also work alongside hybrid systems. Being easy to integrate, simply install the calipers at the wheels and send the brake commands to actuate them.
Do I need separate parking brakes?
No. Each NEMB caliper can have a built-in Parking Brake function. In Parking Brake mode the NEMB caliper can achieve the desired clamping force and remain actuated without the need for power.
Need more information?
Get in touch with us for additional information on our technology and how it can apply to your project.