SANDEN CORPORATION

Utilization of heat pump cycles, often with natural refrigerants, for efficient heating and cooling of the vehicle cabin and/or thermal conditioning of high-voltage components like battery modules.

Techniques and mechanisms to optimize the performance, energy consumption, and operational range of compressors in refrigeration and heat pump systems, often involving variable control of compression parameters like volume ratio or speed.

Novel designs and configurations for heat exchangers that improve heat transfer efficiency, compactness, or enable specific phase change or separation processes within refrigeration and heat pump cycles.

Methods and circuits for controlling the power electronic converters (inverters, bridges) that supply current and voltage to electric motors, including switching strategies, voltage command generation, and multi-phase configurations.

Systems designed to manage the temperature of multiple components in electric or hybrid vehicles, such as batteries, electric motors, power electronics, and the passenger cabin, often using shared or interconnected cooling/heating circuits.

Advanced systems for maintaining passenger comfort and air quality within the vehicle cabin, including features like condensation prevention, remote control, after-blow functions, and air purification.

Focuses on novel circuit configurations for DC-DC, DC-AC, or AC-DC conversion, often involving resonant operation, multi-level structures, or switched capacitors to improve efficiency, power density, or voltage conversion ratios.

Specific heat exchanger designs and auxiliary components tailored for integration into refrigeration, air conditioning, or heat pump systems, often involving gas-liquid separation or rotary mechanisms.

Engineering and diagnostic aspects of individual heating, ventilation, and air conditioning components, such as PTC heaters, air ducts, flow control valves, and compressor monitoring.

Methods and components for converting power into mechanical motion to drive pump mechanisms, encompassing electric motors, hydraulic actuators, and specialized motion converters like ball screws or solenoids.

Design and engineering solutions for creating self-contained, mobile, or miniaturized pump systems, often incorporating battery power, ergonomic features, and integrated components for ease of use and transport.

Strategies and circuits for optimizing the supply and consumption of electrical power for motors, including current limiting, regenerative energy handling, battery integration, and managing power quality.

Innovations in the design, materials, and maintenance of seals, valves, and related components to improve durability, reduce leakage, and enable specific pump functions like high-pressure operation or automated seal replacement.

Design and control strategies for improving the efficiency, stability, and operational flexibility of refrigerant circuits, including component integration, flow management, phase separation, and pressure regulation.

Methods and structures for encapsulating, interconnecting, and integrating impedance network components, particularly acoustic filters, into larger modules or systems.

Design and optimization of fin structures, baffles, and surface textures within heat exchangers to increase heat transfer area, promote turbulence, or manage fluid flow for improved thermal performance.

Bearings that utilize a pressurized gas or liquid film to create a non-contact support surface, reducing friction and wear, often incorporating specific flow restriction or airfoil designs.

Systems and methods for preparing, organizing, and electrically connecting individual conductors or cable bundles to connector terminals, ensuring reliable contact and strain relief.

Techniques and systems for optimizing pump operation, including capacity modulation, energy management, pulsation reduction, and precise fluid dispensing to improve performance and reduce energy consumption.

Development of novel motor architectures beyond traditional radial flux designs, including linear, axial, or multi-armature configurations, often to optimize for specific performance characteristics like torque density or form factor.

Integration of electric motors into larger systems (e.g., vehicles, power tools) and safety features for high-voltage components, including control interfaces, mechanical integration, and environmental protection (e.g., waterproofing).

Manufacturing processes and techniques for producing stator cores, windings, and coils, including lamination, impregnation, hairpin winding, and segment coil bending, to improve motor efficiency, power density, or reliability.

Sophisticated software or hardware-implemented control strategies that optimize motor performance, such as precise speed/torque regulation, vibration reduction, or efficiency, often using model-based, predictive, or adaptive techniques.