Did Jesus willingly accepted the Crucifixion to wipe out the sins of others. Or was he unaware of this.?

He knew everything that was about to happen. That is what all his prayers in the Garden of Gethsemane were all about. He was in so much anxiety, he was sweating blood. He prayed for another way, but also realized that the God's will needed to be done. So to conclude, Jesus did die for our sins as he was the spotless lamb that was sacrificed for everyone's sins.