Search

RU-2861677-C1 - ENERGY RECUPERATOR WITH HYDRAULIC ADAPTER FOR VEHICLE

RU2861677C1RU 2861677 C1RU2861677 C1RU 2861677C1RU-2861677-C1

Abstract

FIELD: mechanical engineering. SUBSTANCE: energy recuperator with a hydraulic adapter for a vehicle comprises a flywheel connected to an actuator drive via a hydraulic adapter. The recuperator includes a programmable logic controller which receives input signals from: a joystick of a vehicle control system, a first pressure sensor installed on a forward hydraulic line, a second pressure sensor installed on a return hydraulic line, a rotational speed sensor of the actuator shaft, a rotational speed sensor of a shaft connecting an electromagnetic clutch and a first motor-pump, a rotational speed sensor of a shaft connecting a second motor-pump and the flywheel. The programmable logic controller transmits output signals to: a first hydraulic distributor regulating the capacity of the first motor-pump, a second hydraulic distributor regulating the capacity of the second motor-pump, an electromagnetic clutch for connecting or disconnecting the drive of the first motor-pump. Wherein the first hydraulic distributor and the second hydraulic distributor are connected to a charge hydraulic line. EFFECT: increasing the efficiency of energy recuperation during vehicle movement. 1 cl, 2 dwg

Inventors

  • AFANASEV MIKHAIL YUREVICH
  • Andryushkin Aleksandr Yurevich

Dates

Publication Date
20260507
Application Date
20251014

Claims (12)

  1. An energy recuperator with a hydraulic adapter for a vehicle, comprising a kinetic energy accumulator in the form of a flywheel connected to an actuator drive via a hydraulic adapter consisting of an electromagnetic clutch capable of connecting or disconnecting the drive to a first motor-pump communicating via a direct hydraulic line and via a return hydraulic line with a second motor-pump connected to the flywheel, the first motor-pump is connected to a booster pump capable of compensating for leaks of working fluid coming from a tank via a booster hydraulic line into a direct hydraulic line through a first check valve and into a return hydraulic line through a second check valve, there is a possibility of bypassing the working fluid from the direct hydraulic line into the return hydraulic line through the first bypass valve, there is a possibility of bypassing the working fluid from the return hydraulic line into a direct hydraulic line through a second bypass valve, characterized in that there is a possibility of optimally coordinating the operating parameters of the actuator drive, the hydraulic adapter and the flywheel during acceleration, braking and uniform movement vehicle using a software logic controller of the control system, receiving input signals from:
  2. - joystick of the vehicle control system;
  3. - the first pressure sensor installed on a direct hydraulic line;
  4. - a second pressure sensor installed on the return hydraulic line;
  5. - actuator shaft speed sensor;
  6. - a shaft speed sensor connecting the electromagnetic clutch and the first motor-pump;
  7. - a shaft speed sensor connecting the second motor-pump and the flywheel;
  8. and transmitting output signals to:
  9. - the first hydraulic distributor, regulating the performance of the first motor-pump;
  10. - the second hydraulic distributor, regulating the performance of the second motor-pump;
  11. - electromagnetic clutch for connecting or disconnecting the first motor-pump drive;
  12. wherein the first hydraulic distributor and the second hydraulic distributor are connected to the feed hydraulic line.

Description

The invention relates to energy storage and energy saving systems, for example, it can be used in transport, lifting and working machines. A "Working machine with hydraulics for energy recovery" is known according to the Russian Federation patent for invention No. 2779211, having at least one hydraulic actuator for driving the working equipment, other hydraulic consumers, two displacement units driven by the driving unit of the working machine, and a control unit, wherein the first displacement unit supplies the said control unit with a hydraulic medium from a hydraulic tank, and the second displacement unit in the working mode supplies the said control unit with a hydraulic medium from a hydraulic tank and during the recovery mode is driven by a hydraulic volume displaced by the said at least one hydraulic actuator or hydraulic consumer in order to feed kinetic energy back into the driving unit, wherein the control unit connects the pressure pipelines of the first and second displacement units with the hydraulic actuator and the said other consumers, wherein at least one first directional valve is provided with at least two switching positions, of which the first switching position opens passing from the said second displacement unit to the control unit, and the second switching position interrupts the volumetric flow between the second displacement unit and the control unit, and wherein at least one second directional valve is provided with at least two switching positions, by means of which it is possible to open or close a direct connection between the said at least one hydraulic actuator and the second displacement unit, in particular the volumetric flow from the actuator to the second displacement unit. A disadvantage of the known device according to the Russian Federation patent for invention No. 2779211 is the low efficiency of energy recovery due to the lack of the possibility of optimally coordinating the operating parameters of the hydraulic actuator, hydraulic consumers, drive unit, first displacement unit when connecting the second displacement unit using the first directional valve and the second directional valve in the energy accumulation and return mode. A "Hydraulic system with a kinetic energy accumulator" is known according to Russian Federation patent for invention No. 2621408, accepted as the closest analogue, containing a hydraulic fluid, a hydraulic machine for increasing the pressure of said hydraulic fluid, a hydraulic circuit for supplying said hydraulic fluid to a hydraulic actuator, wherein said hydraulic machine is configured to receive said hydraulic fluid from said hydraulic actuator, as well as a kinetic energy accumulator for accumulating energy in kinetic form, wherein said kinetic energy accumulator is a flywheel operatively connected to said hydraulic machine through a gearbox so that the rotational speed of said flywheel exceeds the rotational speed of said hydraulic machine, wherein said system is designed in such a way that said hydraulic machine is capable of transmitting energy from the hydraulic fluid obtained from said hydraulic actuator to said flywheel. A disadvantage of the known device according to the Russian Federation patent for invention No. 2621408 is the low efficiency of energy recovery due to the lack of the ability to optimally coordinate the operating parameters of the hydraulic machine, hydraulic actuator, and flywheel using a gearbox in the energy accumulation and return mode. The claimed invention is aimed at increasing the efficiency of energy recovery during vehicle movement by optimally coordinating the operating parameters of the actuator drive and the kinetic energy accumulator using a hydraulic adapter. The stated problem in the claimed invention is solved due to the fact that the energy recuperator with a hydraulic adapter for a vehicle contains a kinetic energy accumulator in the form of a flywheel connected to the actuator drive through a hydraulic adapter consisting of an electromagnetic clutch having the ability to connect or disconnect the drive to the first motor-pump communicating via a direct hydraulic line and via a return hydraulic line with a second motor-pump connected to the flywheel, the first motor-pump is connected to a booster pump having the ability to compensate for leaks of the working fluid coming from the tank through the booster hydraulic line into the direct hydraulic line through the first check valve and into the return hydraulic line through the second check valve, there is the ability to bypass the working fluid from the direct hydraulic line into the return hydraulic line through the first bypass valve, there is the ability to bypass the working fluid from the return hydraulic line into the direct hydraulic line through the second bypass valve, while there is the ability to optimally coordinate the operating parameters of the actuator drive, the hydraulic adapter and flywheel during acceleration, braking and uni