The HydroControl family from Knorr-Bremse comprises compact, lightweight and robust electro-hydraulic supply and control units for rail vehicles in urban public transport — from the highly compact basic version to the new, modularly extendable HydroControl Smart platform.
Within the HydroControl product family, several closely matched variants are available: HydroControl Smart as the new unified platform, HydroControl Compact and Classic with accumulator, HydroControl Basic without accumulator, and HydroControl Aux for manual and electrical auxiliary release circuits. Below you will find a detailed overview of all variants with their features, applications and technical data.
Hydraulic Supply and Control Units within the HydroControl product family are extremely compact, lightweight and robust. They are suited for supplying and controlling brake functions such as the parking, holding, degraded mode brake functions and auxiliary release applications. All HydroControl units are suited to a wide range of vehicle types. Thus, our HydroControl units are especially suited to the demanding operating conditions of modern public transport systems.
Customer benefits
- Modular design
- Service-proven components and design principles
- Brushless EC motor
- Minimal installation space required
- Installation configuration highly variable
Applications
- Light rail vehicles
- Metros
- Monorails
- People movers
HydroControl Smart
HydroControl Smart is an extremely compact, lightweight and robust electro-hydraulic unit concept in that combines versions with or without accumulator using one unified design. Designed for the demanding operating conditions of modern public transportation systems, it is suited to a wide range of vehicle types. Its high power density, modular extendable system layout, and standardized interfaces make it a perfect choice for hydraulic railway brake systems.
with and without accumulator
- HydroControl Smart (Type: u3HU): for small and medium volume requirements
- For pressure or spring-actuated calipers
- With brake pressure regulation
- Pressure range from 0 to 100 bar
- Brushless EC motor
- Smallest measurement: 100 mm height
- Option of security brake, parking brake and additional functions such as integrated release or auxiliary release function
- Ideal for stopping/holding brakes and brakes with wheel slide protection
- Installation options: horizontal or vertical
Customer benefits HydroControl Smart
- Compact electro-hydraulic supply and control unit
- Various functionalities available in one basic design
- Simplified and standardized interface
- Reduced carbon footprint
- Sustainable surface protection
- Reduced oil needed
Applications
- Light rail vehicles
- Metros
- Monorails
- People movers
Architecture / Interfaces
- Modular extendable system features
- Simplified and standardized design
- Unified electrical, mechanical and hydraulic interfaces for different brake applications
- Wheel Slide Protection capable with accumulator
Performance
- Significant size reduction compared to existing EHU-design
- Significant weight reduction
- High power density
- Reduction of oil volume by up to 15%
HydroControl Compact
HydroControl Compact (Type: HGD, HGDS): for small and medium volume requirements
- For pressure or spring-actuated calipers
- With brake pressure regulation
- Pressure range from 0 to 100 bar
- Brushless EC motor
- Smallest measurement: 100 mm height
- Option of security brake
- Ideal for stopping/holding brakes and brakes with wheel slide protection
- Installation options: horizontal or vertical
HydroControl Classic (Type: HGE, HGES):
for higher volume requirements
- For pressure or spring-actuated calipers
- With brake pressure regulation
- Pressure range from 0 to 100 bar
- Brushless EC motor
- Smallest measurement: 145 mm height
- Option of security brake and additional functions such as integrated release or auxiliary release function
- Ideal for stopping/holding brakes and brakes with wheel slide protection
- Installation options: horizontal or vertical
HydroControl highly compact and without accumulator
HydroControl Basic Type HGK
- For pressure- or spring-actuated calipers
- For graduated braking
- Pressure range from 0 to 100 bar
- Available with DC, brushless EC, or AC motor
- Minimum height: 100 mm
- Optional safety brake
- Ideal for stopping, holding, and parking brake functions
- Can be installed horizontally or vertically
HydroControl Aux
for auxiliary release circuit
HydroControl Aux Type HLE / HLEM
Manual auxiliary release unit
- Manual activation of release pressure
- Pressure gauge for pressure display
- Removable activation lever
HydroControl Aux Type EDHL
Electrical auxiliary release unit
- Electrical activation of release pressure
- Pressure monitoring
- Can be installed decentrally on the bogie or car body
- Small, compact design
- Various installation options
