Test stand for the powertrain of a motor vehicle
The invention relates to a test stand ( 100 ) for a powertrain of a motor vehicle ( 20 ). The test stand includes at least one loading motor ( 110 ) with a motor housing ( 111 ) and a motor shaft ( 112 ), at least one torque sensor ( 120 ), and at least one static module ( 130 ), wherein the motor shaft ( 112 ) is designed to be drivingly connected to a hub ( 21 ) of the motor vehicle ( 20 ) and wherein the torque sensor ( 120 ) is designed to detect a torque produced by the loading motor ( 110 ). The test stand ( 100 ) according to the invention is distinguished in that the at least one torque sensor ( 120 ) is arranged on the motor housing ( 111 ) in such manner that it blocks a rotation movement of the motor housing ( 111 ) relative to a substrate ( 119 ) and supports the torque via the motor housing ( 111 ) on the substrate ( 119 ).
1 . A test stand for a powertrain of a motor vehicle having a hub, the test stand comprising:
at least one loading motor with a motor housing and a motor shaft;
at least one torque sensor; and
at least one static module;
wherein the motor shaft is configured to be drivingly connected to the hub of the motor vehicle;
wherein the torque sensor is configured to detect a torque delivered by the loading motor; and
wherein the at least one torque sensor is arranged on the motor housing in such manner that it blocks a rotation movement of the motor housing relative to a substrate and supports the torque via the motor housing on the substrate; and
wherein the motor vehicle comprises a strut, the at least one torque sensor is arranged in the strut, and wherein the strut is attached by way of a first joint eyelet to the motor housing and by way of a second joint eyelet to the substrate.
2 . The test stand according to claim 1 , wherein the at least one torque sensor includes a first torque sensor on a first lateral side of the motor housing and a second torque sensor on a second lateral side of the motor housing.
3 . The test stand according to claim 1 , wherein the motor shaft is configured to be connected rotationally fixed to the hub of the motor vehicle.
4 . The test stand according to claim 1 , comprising: a pneumatic tire fitted onto a radially outer circumference of the at least one static module.
5 . The test stand according to claim 1 , comprising: a rubber coating on a radially outer circumference of the at least one static module.
6 . The test stand according to claim 1 , wherein the at least one static module is configured to be connected to the substrate by friction or with interlock.
7 . The test stand according to claim 1 , wherein the at least one loading motor is in the form of a permanently excited synchronous motor.
8 . The test stand according to claim 1 , wherein the test stand also comprises a supporting ram, the supporting ram configured to be adjusted in three spatial directions and/or rotated about an axis, and wherein the supporting ram is configured to support the static module in place of the substrate.
9 . The test stand according to claim 1 , wherein the motor vehicle includes one or more drivable wheels, the test stand further comprising: a loading motor, a torque sensor, and a static module for each of the one or more drivable wheels of the motor vehicle.
10 . The test stand according to claim 1 ,
wherein the at least one static module comprises a radially outer portion and a radially middle portion;
wherein the middle portion is held rotatably in the outer portion; and
wherein the middle portion is configured to be connected rotationally fixed to an axial end of the motor housing.
11 . The test stand according to claim 10 , the middle portion of the static module is configured to be rotationally blocked relative to the outer portion.
12 . A test stand for a powertrain of a motor vehicle having a hub, the test stand comprising:
at least one loading motor with a motor housing and a motor shaft;
at least one torque sensor; and
at least one static module;
wherein the motor shaft is configured to be drivingly connected to the hub of the motor vehicle;
wherein the torque sensor is configured to detect a torque delivered by the loading motor;
wherein the at least one torque sensor is arranged on the motor housing in such manner that it blocks a rotation movement of the motor housing relative to a substrate and supports the torque via the motor housing on the substrate; and
wherein the at least one torque sensor includes a first torque sensor on a first lateral side of the motor housing and a second torque sensor on a second lateral side of the motor housing.
13 . The test stand according to claim 12 , wherein the motor shaft is configured to be connected rotationally fixed to the hub of the motor vehicle.
14 . The test stand according to claim 12 , wherein the at least one loading motor is in the form of a permanently excited synchronous motor.
15 . The test stand according to claim 12 , wherein the motor vehicle includes one or more drivable wheels, the test stand further comprising: a loading motor, a torque sensor, and a static module for each of the one or more drivable wheels of the motor vehicle.
16 . A test stand for a powertrain of a motor vehicle having a hub, the test stand comprising:
at least one loading motor with a motor housing and a motor shaft;
at least one torque sensor; and
at least one static module;
rubber on a radially outer circumference of the at least one static module;
wherein the motor shaft is configured to be drivingly connected to the hub of the motor vehicle;
wherein the torque sensor is configured to detect a torque delivered by the loading motor; and
wherein the at least one torque sensor is arranged on the motor housing in such manner that it blocks a rotation movement of the motor housing relative to a substrate and supports the torque via the motor housing on the substrate.
17 . The test stand according to claim 16 , wherein the rubber is part of a pneumatic tire.
18 . The test stand according to claim 16 , wherein the at least one loading motor is an electric motor.
19 . The test stand according to claim 16 , wherein the motor vehicle includes one or more drivable wheels, and wherein the test stand comprises a loading motor, a torque sensor, and a static module for each of the one or more drivable wheels of the motor vehicle.
20 . The test stand according to claim 16 , wherein the motor vehicle comprises a strut, the at least one torque sensor is arranged in the strut, and wherein the strut is attached by way of a first joint eyelet to the motor housing and by way of a second joint eyelet to the substrate.